mirror of
https://github.com/EGroupware/egroupware.git
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555 lines
20 KiB
PHP
555 lines
20 KiB
PHP
<?php
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/**
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* eGroupWare eTemplate Extension - VFS Widgets
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*
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker@outdoor-training.de>
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @copyright 2008-10 by RalfBecker@outdoor-training.de
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* @package etemplate
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* @subpackage extensions
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* @version $Id$
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*/
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/**
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* eTemplate extension to display stuff from the VFS system
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*
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* Contains the following widgets:
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* - vfs aka File name+link: clickable filename, with evtl. clickable path-components
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* - vfs-name aka Filename: filename automatically urlencoded on return (urldecoded on display to user)
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* - vfs-size aka File size: human readable filesize, eg. 1.4k
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* - vfs-mode aka File mode: posix mode as string eg. drwxr-x---
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* - vfs-mime aka File icon: mime type icon or thumbnail (if configured AND enabled in the user-prefs)
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* - vfs-uid aka File owner: Owner of file, or 'root' if none
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* - vfs-gid aka File group: Group of file, or 'root' if none
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* - vfs-upload aka VFS file: displays either download and delete (x) links or a file upload
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* + value is either a vfs path or colon separated $app:$id:$relative_path, eg: infolog:123:special/offer
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* + if empty($id) / new entry, file is created in a hidden temporary directory in users home directory
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* and calling app is responsible to move content of that dir to entry directory, after entry is saved
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* + option: required mimetype or regular expression for mimetype to match, eg. '/^text\//i' for all text files
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* + if path ends in a slash, multiple files can be uploaded, their original filename is kept then
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*
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* All widgets accept as value a full path.
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* vfs-mime and vfs itself also allow an array with values like stat (incl. 'path'!) as value.
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* vfs-mime also allows just the mime type as value.
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* All other widgets allow additionally the nummeric value from the stat call (to not call it again).
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*/
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class vfs_widget
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{
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/**
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* exported methods of this class
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*
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* @var array
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*/
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var $public_functions = array(
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'pre_process' => True,
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'post_process' => true, // post_process is only used for vfs-upload (all other widgets set $cell['readlonly']!)
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);
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/**
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* availible extensions and there names for the editor
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*
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* @var array
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*/
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var $human_name = array(
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'vfs' => 'File name+link', // clickable filename, with evtl. clickable path-components
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'vfs-name' => 'File name', // filename automatically urlencoded
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'vfs-size' => 'File size', // human readable filesize
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'vfs-mode' => 'File mode', // posix mode as string eg. drwxr-x---
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'vfs-mime' => 'File icon', // mime type icon or thumbnail
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'vfs-uid' => 'File owner', // Owner of file, or 'root' if none
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'vfs-gid' => 'File group', // Group of file, or 'root' if none
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'vfs-upload' => 'VFS file', // displays either download and delete (x) links or a file upload
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);
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/**
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* pre-processing of the extension
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*
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* This function is called before the extension gets rendered
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*
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* @param string $form_name form-name of the control
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* @param mixed &$value value / existing content, can be modified
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* @param array &$cell array with the widget, can be modified for ui-independent widgets
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* @param array &$readonlys names of widgets as key, to be made readonly
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* @param mixed &$extension_data data the extension can store persisten between pre- and post-process
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* @param object &$tmpl reference to the template we belong too
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* @return boolean true if extra label is allowed, false otherwise
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*/
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function pre_process($form_name,&$value,&$cell,&$readonlys,&$extension_data,&$tmpl)
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{
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//echo "<p>".__METHOD__."($form_name,$value,".array2string($cell).",...)</p>\n";
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$type = $cell['type'];
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if (!in_array($type,array('vfs-name','vfs-upload'))) $cell['readonly'] = true; // to not call post-process
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// check if we have a path and not the raw value, in that case we have to do a stat first
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if (in_array($type,array('vfs-size','vfs-mode','vfs-uid','vfs-gid')) && !is_numeric($value) || $type == 'vfs' && !$value)
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{
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if (!$value || !($stat = egw_vfs::stat($value)))
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{
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if ($value) $value = lang("File '%1' not found!",egw_vfs::decodePath($value));
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$cell = etemplate::empty_cell();
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return true; // allow extra value;
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}
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}
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$cell['type'] = 'label';
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switch($type)
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{
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case 'vfs-upload': // option: required mimetype or regular expression for mimetype to match, eg. '/^text\//i' for all text files
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if (empty($value) && preg_match('/^exec.*\[([^]]+)\]$/',$form_name,$matches)) // if no value via content array, use widget name
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{
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$value = $matches[1];
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}
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$extension_data = array('value' => $value, 'mimetype' => $cell['size'], 'type' => $type);
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if ($value[0] != '/')
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{
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list($app,$id,$relpath) = explode(':',$value,3);
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if (empty($id))
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{
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static $tmppath = array(); // static var, so all vfs-uploads get created in the same temporary dir
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if (!isset($tmppath[$app])) $tmppath[$app] = '/home/'.$GLOBALS['egw_info']['user']['account_lid'].'/.'.$app.'_'.md5(time().session_id());
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$value = $tmppath[$app];
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unset($cell['onchange']); // no onchange, if we have to use a temporary dir
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}
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else
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{
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$value = egw_link::vfs_path($app,$id,'',true);
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}
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if (!empty($relpath)) $value .= '/'.$relpath;
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}
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$path = $extension_data['path'] = $value;
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if (substr($path,-1) != '/' && self::file_exists($path) && !egw_vfs::is_dir($path)) // display download link and delete icon
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{
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$extension_data['path'] = $path;
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$cell = $this->file_widget($value,$path,$cell['name'],$cell['label']);
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}
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else // file does NOT exists --> display file upload
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{
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$cell['type'] = 'file';
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// if no explicit help message set and we only allow certain file types --> show them
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if (empty($cell['help']) && $cell['size'])
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{
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if (($type = mime_magic::mime2ext($cell['size'])))
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{
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$type = '*.'.strtoupper($type);
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}
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else
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{
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$type = $cell['size'];
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}
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$cell['help'] = lang('Allowed file type: %1',$type);
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}
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}
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// check if directory (trailing slash) is given --> upload of multiple files
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if (substr($path,-1) == '/' && egw_vfs::file_exists($path) && ($files = egw_vfs::scandir($path)))
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{
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//echo $path; _debug_array($files);
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$upload = $cell;
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$cell = etemplate::empty_cell('vbox','',array('size' => ',,0,0'));
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$extension_data['files'] = $files;
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$value = array();
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foreach($files as $file)
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{
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$file = $path.$file;
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$basename = basename($file);
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unset($widget);
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$widget = $this->file_widget($value[$basename],$file,$upload['name']."[$basename]");
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etemplate::add_child($cell,$widget);
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}
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etemplate::add_child($cell,$upload);
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}
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break;
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case 'vfs-size': // option: add size in bytes in brackets
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$value = egw_vfs::hsize($size = is_numeric($value) ? $value : $stat['size']);
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if ($cell['size']) $value .= ' ('.$size.')';
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$cell['type'] = 'label';
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break;
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case 'vfs-mode':
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$value = egw_vfs::int2mode(is_numeric($value) ? $value : $stat['mode']);
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list($span,$class) = explode(',',$cell['span'],2);
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$class .= ($class ? ' ' : '') . 'vfsMode';
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$cell['span'] = $span.','.$class;
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$cell['no_lang'] = true;
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break;
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case 'vfs-uid':
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case 'vfs-gid':
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$uid = !is_numeric($value) ? $stat[$type=='vfs-uid'?'uid':'gid'] : $value;
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$value = !$uid ? 'root' : $GLOBALS['egw']->accounts->id2name($type=='vfs-uid'?$uid:-$uid); // our internal gid's are negative!
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break;
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case 'vfs':
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if (is_array($value))
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{
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$name = $value['name'];
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$path = substr($value['path'],0,-strlen($name)-1);
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$mime = $value['mime'];
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}
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else
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{
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$name = $value;
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$path = '';
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$mime = egw_vfs::mime_content_type($value);
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$value = array();
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}
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if (($cell_name = $cell['name']) == '$row')
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{
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$cell_name = array_pop($arr=explode('][',substr($form_name,0,-1)));
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}
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$cell['name'] = '';
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$cell['type'] = 'hbox';
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$cell['size'] = '0,,0,0';
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foreach($name != '/' ? explode('/',$name) : array('') as $n => $component)
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{
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if ($n > (int)($path === '/'))
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{
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$sep = soetemplate::empty_cell('label','',array('label' => '/'));
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soetemplate::add_child($cell,$sep);
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unset($sep);
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}
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$value['c'.$n] = $component !== '' ? egw_vfs::decodePath($component) : '/';
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$path .= ($path != '/' ? '/' : '').$component;
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// replace id's in /apps again with human readable titles
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$path_parts = explode('/',$path);
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if ($path_parts[1] == 'apps')
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{
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switch(count($path_parts))
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{
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case 2:
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$value['c'.$n] = lang('Applications');
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break;
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case 3:
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$value['c'.$n] = lang($path_parts[2]);
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break;
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case 4:
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if (is_numeric($value['c'.$n])) $value['c'.$n] .= egw_link::title($path_parts[2],$path_parts[3]);
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break;
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}
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}
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if (egw_vfs::is_readable($path)) // show link only if we have access to the file or dir
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{
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if ($n < count($comps)-1 || $mime == egw_vfs::DIR_MIME_TYPE || egw_vfs::is_dir($path))
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{
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$value['l'.$n] = '/index.php?menuaction=filemanager.filemanager_ui.index&path='.urlencode($path);
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$target = '';
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}
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else
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{
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$value['l'.$n] = egw_vfs::download_url($path);
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$target = ',,,_blank';
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}
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}
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if ($cell['onclick'])
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{
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$comp = etemplate::empty_cell('button',$cell_name.'[c'.$n.']',array(
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'size' => '1',
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'no_lang' => true,
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'span' => ',vfsFilename',
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'label' => $value['c'.$n],
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'onclick' => str_replace('$path',"'".addslashes($path)."'",$cell['onclick']),
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));
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}
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else
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{
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$comp = etemplate::empty_cell('label',$cell_name.'[c'.$n.']',array(
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'size' => ',@'.$cell_name.'[l'.$n.']'.$target,
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'no_lang' => true,
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'span' => ',vfsFilename',
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));
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}
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etemplate::add_child($cell,$comp);
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unset($comp);
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}
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unset($cell['onclick']); // otherwise it's handled by the grid too
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//_debug_array($comps); _debug_array($cell); _debug_array($value);
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break;
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case 'vfs-name': // size: [length][,maxLength[,allowPath]]
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$cell['type'] = 'text';
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list($length,$maxLength,$allowPath) = $options = explode(',',$cell['size']);
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$preg = $allowPath ? '' : '/[^\\/]/'; // no slash '/' allowed, if not allowPath set
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$cell['size'] = "$length,$maxLength,$preg";
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$value = egw_vfs::decodePath($value);
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$extension_data = array('type' => $type,'allowPath' => $allowPath);
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break;
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case 'vfs-mime': // size: [thsize] (thumbnail size)
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//Read the thumbnail size
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list($thsize) = explode(',', $cell['size']);
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if (!is_numeric($thsize))
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{
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$thsize = NULL;
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}
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if (!$value)
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{
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$cell = etemplate::empty_cell();
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return true;
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}
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if (!is_array($value))
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{
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if ($value[0] == '/' || count(explode('/',$value)) != 2)
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{
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$mime = egw_vfs::mime_content_type($path=$value);
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}
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else
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{
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$mime = $value;
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}
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}
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else
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{
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$path = $value['path'];
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$mime = $value['mime'];
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}
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//error_log(__METHOD__."() type=vfs-mime: value=".array2string($value).": mime=$mime, path=$path");
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$cell['type'] = 'image';
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$cell['label'] = mime_magic::mime2label($mime);
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list($mime_main,$mime_sub) = explode('/',$mime);
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if ($mime_main == 'egw' || isset($GLOBALS['egw_info']['apps'][$mime_main]))
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{
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$value = $mime_main == 'egw' ? $mime_sub.'/navbar' : $mime; // egw-applications for link-widget
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$cell['label'] = lang($mime_main == 'egw' ? $mime_sub : $mime_main);
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list($span,$class) = explode(',',$cell['span'],2);
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$class .= ($class ? ' ' : '') . 'vfsMimeIcon';
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$cell['span'] = $span.','.$class;
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}
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elseif($path && $mime_main == 'image' && in_array($mime_sub,array('png','jpeg','jpg','gif','bmp')) &&
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(string)$GLOBALS['egw_info']['server']['link_list_thumbnail'] != '0' &&
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(string)$GLOBALS['egw_info']['user']['preferences']['common']['link_list_thumbnail'] != '0' &&
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// check the size of the image, as too big images get no icon, but a PHP Fatal error: Allowed memory size exhausted
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(!is_array($value) && ($stat = egw_vfs::stat($path)) ? $stat['size'] : $value['size']) < 600000)
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{
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if (substr($path,0,6) == '/apps/')
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{
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$path = parse_url(egw_vfs::resolve_url_symlinks($path),PHP_URL_PATH);
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}
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//Assemble the thumbnail parameters
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$thparams = array('path' => $path);
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if ($thsize)
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{
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$thparams['thsize'] = $thsize;
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}
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$value = $GLOBALS['egw']->link('/etemplate/thumbnail.php', $thparams);
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}
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else
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{
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$value = egw_vfs::mime_icon($mime);
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}
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// mark symlinks (check if method exists, to allow etemplate to run on 1.6 API!)
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if (method_exists('egw_vfs','is_link') && egw_vfs::is_link($path))
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{
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$broken = !egw_vfs::stat($path);
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list($span,$class) = explode(',',$cell['span'],2);
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$class .= ($class ? ' ' : '') . ($broken ? 'vfsIsBrokenLink' : 'vfsIsLink');
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$cell['span'] = $span.','.$class;
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$cell['label'] = ($broken ? lang('Broken link') : lang('Link')).': '.egw_vfs::decodePath(egw_vfs::readlink($path)).
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(!$broken ? ' ('.$cell['label'].')' : '');
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}
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break;
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default:
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$value = 'Not yet implemented';
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}
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return true;
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}
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/**
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* Create widget with download and delete (only if dir is writable) link
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*
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* @param mixed &$value
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* @param string $path vfs path of download
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* @param string $name name of widget
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* @param string $label=null label, if not set basename($path) is used
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* @return array
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*/
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static function file_widget(&$value,$path,$name,$label=null)
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{
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$value = empty($label) ? egw_vfs::decodePath(egw_vfs::basename($path)) : lang($label); // display (translated) Label or filename (if label empty)
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$vfs_link = etemplate::empty_cell('label',$name,array(
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'size' => ','.egw_vfs::download_url($path).',,,_blank,,'.$path,
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));
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// if dir is writable, add delete link
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if (egw_vfs::is_writable(egw_vfs::dirname($path)))
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{
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$cell = etemplate::empty_cell('hbox','',array('size' => ',,0,0'));
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etemplate::add_child($cell,$vfs_link);
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$delete_icon = etemplate::empty_cell('button',$path,array(
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'label' => 'delete',
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'size' => 'delete', // icon
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'onclick' => "return confirm('Delete this file');",
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'span' => ',leftPad5',
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));
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etemplate::add_child($cell,$delete_icon);
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}
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else
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{
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$cell = $vfs_link;
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}
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return $cell;
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}
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/**
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* Check if vfs file exists *without* using the extension
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*
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* If you rename a file, you have to clear the cache ($clear_after=true)!
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*
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* @param string &$path on call path without extension, if existing on return full path incl. extension
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* @param boolean $clear_after=null clear file-cache after (true) or before (false), default dont clear
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* @return
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*/
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static function file_exists(&$path,$clear_after=null)
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{
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static $files = array(); // static var, to scan each directory only once
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$dir = egw_vfs::dirname($path);
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if ($clear_after === false) unset($files[$dir]);
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if (!isset($files[$dir])) $files[$dir] = egw_vfs::file_exists($dir) ? egw_vfs::scandir($dir) : array();
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$basename = egw_vfs::basename($path);
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$basename_len = strlen($basename);
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$found = false;
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foreach($files[$dir] as $file)
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{
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if (substr($file,0,$basename_len) == $basename)
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{
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$path = $dir.'/'.$file;
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$found = true;
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}
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}
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if ($clear_after === true) unset($files[$dir]);
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//echo "<p>".__METHOD__."($path) returning ".array2string($found)."</p>\n";
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return $found;
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}
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/**
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* postprocessing method, called after the submission of the form
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*
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* It has to copy the allowed/valid data from $value_in to $value, otherwise the widget
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* will return no data (if it has a preprocessing method). The framework insures that
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* the post-processing of all contained widget has been done before.
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*
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* Only used by vfs-upload so far
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*
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* @param string $name form-name of the widget
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* @param mixed &$value the extension returns here it's input, if there's any
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* @param mixed &$extension_data persistent storage between calls or pre- and post-process
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* @param boolean &$loop can be set to true to request a re-submision of the form/dialog
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* @param object &$tmpl the eTemplate the widget belongs too
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* @param mixed &value_in the posted values (already striped of magic-quotes)
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* @return boolean true if $value has valid content, on false no content will be returned!
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*/
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function post_process($name,&$value,&$extension_data,&$loop,&$tmpl,$value_in)
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{
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//error_log(__METHOD__."('$name',".array2string($value).','.array2string($extension_data).",$loop,,".array2string($value_in).')');
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//echo '<p>'.__METHOD__."('$name',".array2string($value).','.array2string($extension_data).",$loop,,".array2string($value_in).")</p>\n";
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if (!$extension_data) return false;
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switch($extension_data['type'])
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{
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case 'vfs-name':
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$value = $extension_data['allowPath'] ? egw_vfs::encodePath($value_in) : egw_vfs::encodePathComponent($value_in);
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return true;
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case 'vfs-upload':
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break; // handeled below
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default:
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return false;
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}
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// from here on vfs-upload only!
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// check if delete icon clicked
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if ($_POST['submit_button'] == ($fname = str_replace($extension_data['value'],$extension_data['path'],$name)) ||
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substr($extension_data['path'],-1) == '/' && substr($_POST['submit_button'],0,strlen($fname)-1) == substr($fname,0,-1))
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{
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if (substr($extension_data['path'],-1) == '/') // multiple files?
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{
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foreach($extension_data['files'] as $file) // check of each single file, to not allow deleting of arbitrary files
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{
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if ($_POST['submit_button'] == substr($fname,0,-1).$file.']')
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{
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if (!egw_vfs::unlink($extension_data['path'].$file))
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{
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etemplate::set_validation_error($name,lang('Error deleting %1!',egw_vfs::decodePath($extension_data['path'].$file)));
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}
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break;
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}
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}
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}
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elseif (!egw_vfs::unlink($extension_data['path']))
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{
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etemplate::set_validation_error($name,lang('Error deleting %1!',egw_vfs::decodePath($extension_data['path'])));
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}
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$loop = true;
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return false;
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}
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// handle file upload
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$name = preg_replace('/^exec\[([^]]+)\](.*)$/','\\1\\2',$name); // remove exec prefix
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if (!is_array($_FILES['exec']) || !($filename = etemplate::get_array($_FILES['exec']['name'],$name)))
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{
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return false; // no file attached
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}
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$tmp_name = etemplate::get_array($_FILES['exec']['tmp_name'],$name);
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$error = etemplate::get_array($_FILES['exec']['error'],$name);
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if ($error)
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{
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etemplate::set_validation_error($name,lang('Error uploading file!')."\n".
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etemplate::max_upload_size_message());
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$loop = true;
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return false;
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}
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if (empty($tmp_name) || function_exists('is_uploaded_file') && !is_uploaded_file($tmp_name) || !file_exists($tmp_name))
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{
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return false;
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}
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// check if type matches required mime-type, if specified
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if (!empty($extension_data['mimetype']))
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{
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$type = etemplate::get_array($_FILES['exec']['type'],$name);
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$is_preg = $extension_data['mimetype'][0] == '/';
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if (!$is_preg && strcasecmp($extension_data['mimetype'],$type) || $is_preg && !preg_match($extension_data['mimetype'],$type))
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{
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etemplate::set_validation_error($name,lang('File is of wrong type (%1 != %2)!',$type,$extension_data['mimetype']));
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return false;
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}
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}
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$path = $extension_data['path'];
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if (substr($path,-1) != '/')
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{
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// add extension to path
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$parts = explode('.',$filename);
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if (($extension = array_pop($parts)) && mime_magic::ext2mime($extension)) // really an extension --> add it to path
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{
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$path .= '.'.$extension;
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}
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}
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else // multiple upload with dir given (trailing slash)
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{
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$path .= egw_vfs::encodePathComponent($filename);
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}
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if (!egw_vfs::file_exists($dir = egw_vfs::dirname($path)) && !egw_vfs::mkdir($dir,null,STREAM_MKDIR_RECURSIVE))
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{
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etemplate::set_validation_error($name,lang('Error create parent directory %1!',egw_vfs::decodePath($dir)));
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return false;
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}
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if (!copy($tmp_name,egw_vfs::PREFIX.$path))
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{
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etemplate::set_validation_error($name,lang('Error copying uploaded file to vfs!'));
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return false;
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}
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$value = $path; // return path of file, important if only a temporary location is used
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return true;
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}
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}
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