[TYPO3-dam] clean filenames at file upload on Windows

[Mario Šargač]

Hello,

-------------- Short version ----------------
Is there an option to clean the filenames with umlauts and other special 
characters generated basically on Windows file system, that I can use 
with DAM, so that the file-names would be stored in ASCII, while 
original file-name with special characters would go into "title" meta?

Best,
Mario

-------------- Long version (optional) -----------------

I've come across a problem with accented filenames on Windows system and 
I hope somebody has a solution to it.

I'm using DAM for file management and complete UTF-8 setup (all DB 
server connections and Typo3 setup as well: force charset and utf8 
filesystem). The underlaying OS is Windows (2008 R2 server) and I 
believe this is where the problem lies.

I experience a "two-way" problem -- here's the scenario:
1. When I upload the file with special characters (umlauts, for 
instance) with DAM, the filename is not readable using Windows Explorer, 
all umlauts and other special characters get strange multi-byte strings 
represented as single-byte, while DAM title is correctly displayed.

2. When the file with umlauts and other characters is created directly 
with Windows Explorer, and I'd like to index it with DAM, special 
characters are not visible in file browser. There are question marks 
instead.

I tried to disable UTF8filesystem, setting it to 0, as Krystian 
Szymukowicz pointed out in one of his previous posts, but it didn't help 
here. He also said modifying the 
"binding/tce/class.tx_dam_tce_extfilefunc.php" file at line 328 and 
enabling "cleanFileName" function would help, but I haven't tested it 
yet, as the post is old and I don't think it's wise to modify the core 
files.

There are no problems on Linux as the filesystem is entirely in utf-8, 
but since I have to use Windows, I'd like to clean filenames at upload, 
to solve the problem.

Does anyone have a suggestion about the right approach here, and are 
there already any configuration settings available I can use to solve 
the problem with filenames on Windows?

Best,
Mario
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