[xmlsec] decrypting badly encoded xml

[Aleksey Sanin]

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Aleksey

Michael K wrote:
> Hello Aleksey,
>   Can I patch xmlsec to cleanup the decrypted text before passing it on to xmlParseInNodeContext.  If so where should this code be inserted ?
> 
> thanks,
>    Michael
> 
> 
> 
> ----- Original Message ----
> From: Aleksey Sanin <aleksey at aleksey.com>
> To: Michael K <vk2bea at yahoo.com>
> Cc: xmlsec at aleksey.com
> Sent: Saturday, June 13, 2009 3:49:44 PM
> Subject: Re: [xmlsec] decrypting badly encoded xml
> 
> Hm... I don't think you can do anything about this. At least,
> not easily. xmlsec calls xmlParseInNodeContext from libxml2
> and it expects a well formed XML. You can patch both libraries and
> specify encoding manually though.
> 
> Aleksey
> 
> Michael K wrote:
>> I am AES decoding some <EncryptedData> containing strings that was not utf-8 compliant.
>>
>> When I decode the <EncryptedData> I get the error....
>>
>> Entity: line 4: parser error : Input is not proper UTF-8, indicate encoding !
>> Bytes: 0xE2 0x3F 0x3F 0x41
>> <text>II The Way Forward�??A New Approach</text>
>>                         ^
>> Entity: line 8: parser error : chunk is not well balanced
>>                 </navLabel>
>>                            ^
>>
>> The call to xmlSecEncCtxDecrypt(encCtx, enc_node) fails because of this utf-8 problem. There are other tags encrypted between the <EncryptedData> tags (other than this one that has a problem) than I cannot recover because of this failure.  
>> Is there a way of forcing the xmlsec/libxml to ignore the utf-8 problem ?  I have no control of the encrypted data so I cannot correct the original problem.
>>
>> Michael
>>
>>
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> 
> 
> 
>