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Secure Files: securing personal files


22 Posts   2719 Views


1 November 2010 at 11:35pm (Last edited: 1 November 2010 11:41pm), Community Member, 14 Posts

Thanks very much for getting back to me, I have added in another closing bracket that seemed to be throwing a spanner in the works so the code now shows,

$result->push(new ArrayData(array('Folder' => $folder['Folder'], $files => $files)));

I am now getting the following error message,

[User Error] Bad class to singleton() - Files
GET /silverstripe/investor-login/investor-area/

Line 334 in C:\wamp\www\silverstripe\sapphire\core\Core.php

325 *
326 * @param string $className
327 * @return Object
328 */
329 function singleton($className) {
330    global $_SINGLETONS;
331    if(!isset($className)) user_error("singleton() Called without a class", E_USER_ERROR);
332    if(!is_string($className)) user_error("singleton() passed bad class_name: " . var_export($className,true), E_USER_ERROR);
333    if(!isset($_SINGLETONS[$className])) {
334     if(!class_exists($className)) user_error("Bad class to singleton() - $className", E_USER_ERROR);
335       $_SINGLETONS[$className] = Object::strong_create($className,null, true);
336       if(!$_SINGLETONS[$className]) user_error("singleton() Unknown class '$className'", E_USER_ERROR);
337    }
338    return $_SINGLETONS[$className];
339 }


* Bad class to singleton() - Files
Line 334 of Core.php
* singleton(Files)
Line 2714 of DataObject.php
* DataObject::get(Files)
Line 22 of InvestorPage.php
* InvestorPage->getFilesUserCanAccess()
* call_user_func_array(Array,Array)
Line 693 of Object.php
* Object->__call(getFilesUserCanAccess,Array)
* InvestorPage_Controller->getFilesUserCanAccess()
Line 112 of ViewableData.php
* ViewableData->__get(FilesUserCanAccess)
Line 371 of ViewableData.php
* ViewableData->obj(FilesUserCanAccess)
Line 6 of
* include(C:\WINDOWS\Temp\silverstripe-cacheC--wamp-www-silverstripe\
Line 420 of SSViewer.php
* SSViewer->process(InvestorPage_Controller,Zend_Cache_Frontend_Output)
Line 411 of SSViewer.php
* SSViewer->process(InvestorPage_Controller)
Line 202 of Controller.php
* Controller->handleAction(SS_HTTPRequest)
Line 137 of RequestHandler.php
* RequestHandler->handleRequest(SS_HTTPRequest)
Line 147 of Controller.php
* Controller->handleRequest(SS_HTTPRequest)
Line 199 of ContentController.php
* ContentController->handleRequest(SS_HTTPRequest)
Line 184 of ContentController.php
* ContentController->handleRequest(SS_HTTPRequest)
Line 67 of ModelAsController.php
* ModelAsController->handleRequest(SS_HTTPRequest)
Line 281 of Director.php
* Director::handleRequest(SS_HTTPRequest,Session)
Line 124 of Director.php
* Director::direct(/investor-login/investor-area/)
Line 127 of main.php

Any thoughts on the problem?

I really do appreciate your help with this, sorry to keep coming back with fresh problems! (I'm midway through a Lynda course on PHP and im diving in at the deepend here!) However, once i get this sorted, it will be somthing i can use again and again, and hopefully understand how/why im gettign these errors!



2 November 2010 at 9:07am Community Member, 712 Posts

Yep, that's an easy one. The following line is incorrect:

$files = DataObject::get('Files');

There is no "Files" object, only "File" objects.


10 November 2010 at 10:48am Community Member, 51 Posts

Hi Hamish

I'm using this code to get secured files and display on the frontend:

function getViewableFiles() {
          $files = new DataObjectSet();
          $folders = DataObject::get('Folder');
          if(!$folders) return $files;
          foreach($folders as $folder)
               if(!$folder->Secured && !$folder->InheritSecured())
                   if($subFiles = DataObject::get('File', "ClassName != 'Folder' && ParentID = {$folder->ID}"))
          return $files; // Should contain all files that the member can view.

But I have an issue with this code as it is grabbing only last created folder by ID. It means, if I have 2 different users with 2 separated folders, only one user will see files, because I'm getting only one folder. Where could be a problem?

Best regards
Digital Punk


10 November 2010 at 11:23am Community Member, 712 Posts

You seem to be missing braces after the foreach loop. Probably the cause of your problem because it's looping through every folder before moving to the CanView check - so only the last folder in the set gets analysed.


10 November 2010 at 11:46am Community Member, 14 Posts

Hamish = Legend.

Thanks for helping out Silverstripe beginners, you're an asset to it's uptake.


10 November 2010 at 1:43pm Community Member, 51 Posts

To Hamish

Thanks for your point! It helped to finalize solution.

Best regards
Digital Punk