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Sharepoint FBA on ISA2006 + Umlaut ,,

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Sharepoint FBA on ISA2006 + Umlaut ,, - 16.Oct.2008 11:23:01 AM   
beatch

 

Posts: 2
Joined: 16.Oct.2008
Status: offline
Hello everyone

In our enviroment, we have an english ISA2006(SP1) on a Win 2003 R2 SP2 Server (english) for publishing different Sharepoint portals from our customers.
- Once a WSS 3.0 farm
- Once a MOSS-farm
both with formbased authentication. WSS over SSL, MOSS at the moment without SSL.

Everything is working fine, but if we want to upload a document in folders, which contains german umlaut's like ,, in the name, we always get an error Code 500 (12202).
In the ISA log: 12232 The server denied the specified Uniform Resource Locator (URL). Contact the server administrator

This error happens only with Microsoft IE (different versions tested). With a Mozilla Browser it's working without any errors.
If we change the authentication to basic, the upload also working with Microsoft IE.
We also have checked the HTTP Security Filter: the normalization and block extended characters are unchecked.

Has anyone an idea?

Thanks in advance.

Best regards,
Beat
Post #: 1
RE: Sharepoint FBA on ISA2006 + Umlaut ,, - 16.Oct.2008 4:04:25 PM   
ferrix

 

Posts: 547
Joined: 16.Mar.2005
Status: offline
I don't know the answer, but if it was my server I'd use TrafficLog (free here) to look at the actual requests going through ISA at different points and learn what is different with IE using FBA.

(in reply to beatch)
Post #: 2
RE: Sharepoint FBA on ISA2006 + Umlaut ,, - 17.Oct.2008 4:43:47 AM   
beatch

 

Posts: 2
Joined: 16.Oct.2008
Status: offline
hi ferrix
thanks for your fast answer.
I have already made some further investigations.
During the upload process, I can see one "get" and a few later one "post" request on the ISA Server log.
The IE has changed the url for the later "post" request. And will access this url as anonymous.

IE Request:
GET  http://mydomain/demo/Docs/_layouts/Upload.aspx?List=%7B8CB1F0FC%2D2BF9%2D4DA4%2DB7DC%2D6E155DA21679%7D&RootFolder=%2Fdemo%2FDocs%2FDokumente%2F%C3%A4%C3%B6%C3%BC&Source=http%3A%2F%2Fproj%2Eebgnet%2Ech%2Fdemo%2FDocs%2FDokumente%2FForms%2FAllItems%2Easpx%3FRootFolder%3Dhttp%253a%252f%252fproj%252eebgnet%252ech%252fdemo%252fDocs%252fDokumente%252f%25c3%25a4%25c3%25b6%25c3%25bc%26FolderCTID%3D0x0120002449BAC5E521BE45B25702BC0E54E9D0

POST http://mydomain/demo/Docs/_layouts/Upload.aspx?List=%7b8CB1F0FC-2BF9-4DA4-B7DC-6E155DA21679%7d&RootFolder=%2fdemo%2fDocs%2fDokumente%2f%u00e4%u00f6%u00fc&Source=http%3a%2f%2fproj.ebgnet.ch%2fdemo%2fDocs%2fDokumente%2fForms%2fAllItems.aspx%3fRootFolder%3dhttp%253a%252f%252fproj%252eebgnet%252ech%252fdemo%252fDocs%252fDokumente%252f%25c3%25a4%25c3%25b6%25c3%25bc%26FolderCTID%3d0x0120002449BAC5E521BE45B25702BC0E54E9D0

Mozilla Request:
GET  http://mydomain/demo/Docs/_layouts/Upload.aspx?List=%7B8CB1F0FC%2D2BF9%2D4DA4%2DB7DC%2D6E155DA21679%7D&RootFolder=%2Fdemo%2FDocs%2FDokumente%2F%C3%A4%C3%B6%C3%BC&Source=http%3A%2F%2Fproj%2Eebgnet%2Ech%2Fdemo%2FDocs%2FDokumente%2FForms%2FAllItems%2Easpx%3FRootFolder%3Dhttp%253a%252f%252fproj%252eebgnet%252ech%252fdemo%252fDocs%252fDokumente%252f%25c3%25a4%25c3%25b6%25c3%25bc%26FolderCTID%3D0x0120002449BAC5E521BE45B25702BC0E54E9D0

POST http://mydomain/demo/Docs/_layouts/Upload.aspx?List=%7B8CB1F0FC%2D2BF9%2D4DA4%2DB7DC%2D6E155DA21679%7D&RootFolder=%2Fdemo%2FDocs%2FDokumente%2F%C3%A4%C3%B6%C3%BC&Source=http%3A%2F%2Fproj%2Eebgnet%2Ech%2Fdemo%2FDocs%2FDokumente%2FForms%2FAllItems%2Easpx%3FRootFolder%3Dhttp%253a%252f%252fproj%252eebgnet%252ech%252fdemo%252fDocs%252fDokumente%252f%25c3%25a4%25c3%25b6%25c3%25bc%26FolderCTID%3D0x0120002449BAC5E521BE45B25702BC0E54E9D0

I've also tried with different codepage properties in IE, unfortunately with no luck...

(in reply to ferrix)
Post #: 3
RE: Sharepoint FBA on ISA2006 + Umlaut ,, - 17.Oct.2008 8:10:45 AM   
ferrix

 

Posts: 547
Joined: 16.Mar.2005
Status: offline
Good first step, now you know one part of the problem.  Next you need to find out if this URL is broken right away in the browser's request or is being changed by ISA and broken there.

My guess is that it is a problem in Internet Explorer, because of this from Wikipedia:
quote:

There exists a non-standard encoding for Unicode characters: %uxxxx, where xxxx is a Unicode value represented as four hexadecimal digits. This behavior is not specified by any RFC and has been rejected by the W3C. The third edition of ECMA-262 still includes an escape(string) function that uses this syntax, but also an encodeURI(uri) function that converts to UTF-8 and percent-encodes each octet.


As you have found, the difference between good and bad URLs is this non-standard unicode escaping.  I am not a sharepoint expert, but maybe there is a jscript that is using this way in IE, and ISA is denying it because it's non-standard.

In my opinion, first you should see if there's any Microsoft supported solution, since all the involved steps are using MS products!  But then, my mind always goes toward a coding solution: it would be easy to re-encode these URLs with an IsaScript filter.

(in reply to beatch)
Post #: 4
RE: Sharepoint FBA on ISA2006 + Umlaut ,, - 8.Jan.2009 11:12:15 PM   
Steveinator

 

Posts: 18
Joined: 7.Jan.2009
Status: offline
I know this is an old post but it may be useful to someone.  This KB addresses issues with ISA 2006 and extended characters:
http://support.microsoft.com/kb/940248

With SP1 installed, the hotfix isn't needed, you should only have to run the .vbs script.

gl

(in reply to ferrix)
Post #: 5

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