Thank you Jlew.

I am in favor of this. Can anybody see any reason for not accepting
relative URLs?

Massimo

On Nov 23, 10:57 pm, Jlew <[email protected]> wrote:
> I noticed that the XML module does not allow relative URL's when
> sanitize is set to true.  I would think that local urls would be
> helpful to allow as the web2py URL function produces relative urls.
> It would only make sense to allow relative links. I found a case where
> html links generated from url function and stored in the db would
> later be removed when passed through an XML with sanitize on.
>
> Searching into the issue I found that this is because the XssCleaner
> in web2py.gluon.sanitizer has a method url_is_acceptable which only
> allows absolute urls.
>
> Here is a patch that allows relative urls.
>
> diff --git a/gluon/sanitizer.py b/gluon/sanitizer.py
> --- a/gluon/sanitizer.py
> +++ b/gluon/sanitizer.py
> @@ -151,11 +151,12 @@
>
>      def url_is_acceptable(self, url):
>          """
> -        Requires all URLs to be \"absolute.\"
> +        Accepts relative and absolute urls
>          """
>
>          parsed = urlparse(url)
> -        return parsed[0] in self.allowed_schemes and '.' in parsed[1]
> +        return (parsed[0] in ['http', 'https', 'ftp'] and '.' in
> parsed[1]) \
> +                or (parsed[0] == '' and parsed[2][0:1]=='/')
>
>      def strip(self, rawstring, escape=True):
>          """

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