This fixes an issue when renaming files from a flat list view like
"Favorites" or "Shared with you", in which case the path needs to be
present in the response to make sure the data-path attribute is properly
set in the JS side.
To make it possible for the web UI to correctly display the tag/favorite
information after a rename, this information is now returned in the
rename response
Make it possible to drop files below the table even if the table is
smaller than the window height.
Added a check to make sure upload is not triggered on invisible lists.
We already use `.text()` here which automatically properly encodes the string. Thus the string will be double-encoded and look ugly. (i.e. when you search for ">" you will see "No results found for >")
Fixes itself.
Otherwise a fatal PHP error is thrown since the filesystem is not setup:
```
( ! ) Fatal error: Call to a member function getOwner() on null in /Users/lreschke/Programming/core/lib/private/files/filesystem.php on line 817
Call Stack
1 0.0004 247792 {main}( ) ../index.php:0
2 0.0946 5088776 OC::handleRequest( ) ../index.php:28
3 0.1423 7491280 OC\Route\Router->match( ) ../base.php:748
4 0.1664 8592152 call_user_func:{/Users/lreschke/Programming/core/lib/private/route/router.php:250} ( ) ../router.php:250
5 0.1664 8592216 __lambda_func( ) ../router.php:250
6 0.1665 8599064 require_once( '/Users/lreschke/Programming/core/apps/files_versions/ajax/getVersions.php' ) ../route.php(135) : runtime-created function:1
7 0.1801 9061096 OCA\Files_Versions\Storage::getUidAndFilename( ) ../getVersions.php:7
8 0.1801 9061144 OC\Files\Filesystem::getOwner( ) ../storage.php:45
```
Furthermore this adds the CSRF check as a nice-to-have addition, the requests accessing this are done via the jQuery AJAX methods and thus the header is automatically added to all requests already.
Otherwise when the file without any specified mimetype was accessed the error log was flooded with entries such as "Undefined index: mime", there can be multiple issues found about this in the forum and our bugtracker.
To test this access `/index.php/apps/files/ajax/mimeicon.php` with and without `$_GET['mime']`.
Fixes itself.
Whenever an external storage mount point is shared directly, its path is
empty which causes a leading slash to appear in the source path.
This fix removes the bogus leading slash in such situation.
