Hi!
After some digging I found that changing the __repr__ of Literal from:
def __repr__(self):
return """rdflib.Literal('%s', lang=%s, datatype=%s)""" %
(str(self), repr(self.language), repr(self.datatype))
to:
def __repr__(self):
return """rdflib.Literal(%s, lang=%s, datatype=%s)""" % (
super(Literal, self).__repr__(),
repr(self.language),
repr(self.datatype))
Solves this.
Apart from the unicode problem, the repr also failed when value
contained single quotes. This was a potential sequrity hole for e.g.
sparql endpoints based or rdflib. (we have a non-restricted eval on
line 285 in "rdflib/sparql/bison/SPARQLEvaluate.py"). Just try (or
rather don't):
FILTER(?name != "' + repr(__import__('sys', []).exit()) + '")
The fix above solves this too. I have checked it in now (revision 1241).
Best regards,
Niklas
On 7/17/07, Gunnar Aastrand Grimnes <[EMAIL PROTECTED]> wrote:
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> Hello all,
>
> I have some problems with querying for unicode literals. If I have a query
> like:
>
> select ?x where { ?x ?y ?z FILTER ( ?z == "ö" ). }
>
> I get exceptions when parsing. This only breaks when in a filter though.
>
> I attach a "test-case"
>
> I see unicode and sparql used to be a problem way back:
> http://rdflib.net/issues/2006/11/14/another_problem_with_unicode_strings_in_sparql_queries/issue
> and
> http://rdflib.net/issues/2006/11/01/unicode_strings_in_sparql_query_is_not_supported/issue
>
> but it was apparently fixed.
>
> - --
> Gunnar Aastrand Grimnes
> gunnar.grimnes [AT] dfki.de
>
> DFKI GmbH
> Knowledge Management
> Trippstadter Strasse 122
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>
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> Mobile: +49 177 277 4397
>
>
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