added option to download multiply files or folder as zip file

files/get_file.php

@@ -0,0 +1,108 @@
+<?php
+/**
+* ownCloud - ajax frontend
+*
+* @author Robin Appelman
+* @copyright 2010 Robin Appelman icewind1991@gmail.com
+* 
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+* License as published by the Free Software Foundation; either 
+* version 3 of the License, or any later version.
+* 
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+*  
+* You should have received a copy of the GNU Lesser General Public 
+* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+* 
+*/
+
+//not this file is for getting files themselves, get_files.php is for getting a list of files.
+
+require_once('../inc/lib_base.php');
+
+if(!function_exists('sys_get_temp_dir')) {
+    function sys_get_temp_dir() {
+        if( $temp=getenv('TMP') )        return $temp;
+        if( $temp=getenv('TEMP') )        return $temp;
+        if( $temp=getenv('TMPDIR') )    return $temp;
+        $temp=tempnam(__FILE__,'');
+        if (file_exists($temp)) {
+          unlink($temp);
+          return dirname($temp);
+        }
+        return null;
+    }
+}
+
+function addDir($dir,$zip,$internalDir=''){
+    $dirname=basename($dir);
+    $zip->addEmptyDir($internalDir.$dirname);
+    $internalDir.=$dirname.='/';
+    $files=OC_FILES::getdirectorycontent($dir);
+    foreach($files as $file){
+        $filename=$file['name'];
+        $file=$dir.'/'.$filename;
+        if(is_file($file)){
+            $zip->addFile($file,$internalDir.$filename);
+        }elseif(is_dir($file)){
+            addDir($file,$zip,$internalDir);
+        }
+    }
+}
+
+$files=$_GET['files'];
+$dir=(isset($_GET['dir']))?$_GET['dir']:'';
+if(strstr($files,'..') or strstr($dir,'..')){
+    die();
+}
+if(strpos($files,',')){
+    $files=explode(',',$files);
+}
+
+
+if(is_array($files)){
+    $zip = new ZipArchive();
+    $filename = sys_get_temp_dir()."/ownCloud.zip";
+    if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
+        exit("cannot open <$filename>\n");
+    }
+    foreach($files as $file){
+        $file=$CONFIG_DATADIRECTORY.'/'.$dir.'/'.$file;
+        if(is_file($file)){
+            $zip->addFile($file,basename($file));
+        }elseif(is_dir($file)){
+            addDir($file,$zip);
+        }
+    }
+    $zip->close();
+}elseif(is_dir($CONFIG_DATADIRECTORY.'/'.$dir.'/'.$files)){
+    $zip = new ZipArchive();
+    $filename = sys_get_temp_dir()."/ownCloud.zip";
+    if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
+        exit("cannot open <$filename>\n");
+    }
+    $file=$CONFIG_DATADIRECTORY.'/'.$dir.'/'.$files;
+    addDir($file,$zip);
+    $zip->close();
+}else{
+    $zip=false;
+    $filename=$CONFIG_DATADIRECTORY.'/'.$dir.'/'.$files;
+}
+header('Content-Description: File Transfer');
+header('Content-Type: application/octet-stream');
+header('Content-Disposition: attachment; filename='.basename($filename));
+header('Content-Transfer-Encoding: binary');
+header('Expires: 0');
+header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+header('Pragma: public');
+header('Content-Length: ' . filesize($filename));
+ob_clean();
+readfile($filename);
+if($zip){
+    unlink($filename);
+}
+?>

js/lib_files.js

@@ -152,6 +152,13 @@ OC_FILES.showbrowser_callback=function(content){
              tr=document.createElement('tr');
              tbody.appendChild(tr);
              tr.className='browserline';
+             td=document.createElement('td');
+             tr.appendChild(td);
+             input=document.createElement('input');
+             input.setAttribute('type','checkbox');
+             input.setAttribute('name','fileSelector');
+             input.setAttribute('value',file['name']);
+             td.appendChild(input);
              tr.appendChild(OC_FILES.showicon(file['type']));
              td=document.createElement('td');
              tr.appendChild(td);
@@ -169,7 +176,7 @@ OC_FILES.showbrowser_callback=function(content){
                 sizeTd=document.createElement('td');
                 tr.appendChild(sizeTd);
                 sizeTd.className='sizetext';
-                sizeTd.appendChild(document.createTextNode(file['size']+' bytes'));
+                sizeTd.appendChild(document.createTextNode(sizeFormat(file['size'])));
              }
              a=document.createElement('a');
              img=document.createElement('img');
@@ -203,11 +210,23 @@ OC_FILES.showbrowser_callback=function(content){
     }
     tr=document.createElement('tr');
     tbody.appendChild(tr);
+    tr.className='utilrow';
     td=document.createElement('td');
     tr.appendChild(td);
     td.className='upload';
-    td.setAttribute('colspan','5');
+    td.setAttribute('colspan','6');
     this.showuploader(dir,td,content['max_upload']);
+    tr=document.createElement('tr');
+    tbody.appendChild(tr);
+    tr.className='utilrow';
+    td=document.createElement('td');
+    tr.appendChild(td);
+    td.setAttribute('colspan','6');
+    button=document.createElement('input');
+    td.appendChild(button);
+    button.setAttribute('type','button');
+    button.setAttribute('value','Download');
+    button.setAttribute('onclick','OC_FILES.downloadSelected()');
     contentNode.appendChild(files);
 }
 
@@ -225,9 +244,11 @@ OC_FILES.showuploader=function(dir,parent,max_upload){
    input.setAttribute('type','hidden');
    input.setAttribute('name','MAX_FILE_SIZE');
    input.setAttribute('value',max_upload);
+   input.setAttribute('id','max_upload');
    this.uploadForm.appendChild(input);
    var file=document.createElement('input');
    file.name='file';
+   file.setAttribute('id','fileSelector');
    file.setAttribute('type','file');
    file.setAttribute('onchange','OC_FILES.upload("'+dir+'")');
    this.uploadForm.appendChild(document.createTextNode('Upload file: '));
@@ -237,6 +258,16 @@ OC_FILES.showuploader=function(dir,parent,max_upload){
 
 OC_FILES.upload=function(dir){
    OC_FILES.uploadIFrame.setAttribute('onload',"OC_FILES.upload_callback.call(OC_FILES,'"+dir+"')");
+   var fileSelector=document.getElementById('fileSelector');
+   var max_upload=document.getElementById('max_upload').value;
+   if(fileSelector.files && fileSelector.files[0].fileSize){
+       var size=fileSelector.files[0].fileSize
+//        new OCNotification('size: '+size,1000);
+       if(size>max_upload){
+//            new OCNotification('Chosen file is to large',20000);
+           return false;
+       }
+   }
    OC_FILES.uploadForm.submit();
 }
 
@@ -310,4 +341,40 @@ OC_FILES.remove=function(dir,file){
 
 OC_FILES.remove_callback=function(req){
    OC_FILES.showbrowser(OC_FILES.dir);
+}
+
+OC_FILES.getSelected=function(){
+    nodes=document.getElementsByName('fileSelector');
+    files=Array();
+    for(index in nodes){
+        if(nodes[index].checked){
+            files[files.length]=nodes[index].value;
+        }
+    }
+    return files;
+}
+
+OC_FILES.downloadSelected=function(){
+    files=OC_FILES.getSelected();
+    if(files.length>1){
+        files.join(';');
+    }else{
+        files=files[0];
+    }
+    window.location=WEBROOT+'/files/get_file.php?dir='+OC_FILES.dir+'&files='+files;
+}
+
+sizeFormat=function(size){
+    var orig=size;
+    var steps=Array('B','KiB','MiB','GiB','TiB');
+    var step=0;
+    while(size>(1024*2)){
+        step++;
+        size=size/1024;
+    }
+//     size=orig/(1024^(step+1));//recalculate the size in one time to minimalize rounding errors;
+    if(size.toFixed){
+        size=size.toFixed(2);
+    }
+    return ''+size+' '+steps[step];
 }