[bug #64082] wget unescapes URLs used as CSS url() parameters, leading to spaces and thus invalid CSS

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?64082>

                 Summary: wget unescapes URLs used as CSS url() parameters,
leading to spaces and thus invalid CSS
                   Group: GNU Wget
               Submitter: None
               Submitted: Thu 20 Apr 2023 10:17:29 PM UTC
                Category: Program Logic
                Severity: 3 - Normal
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Ethan Gibbs
        Originator Email: ethan@snowsign.net
             Open/Closed: Open
                 Release: 1.20
         Discussion Lock: Any
        Operating System: Microsoft Windows
         Reproducibility: Every Time
           Fixed Release: None
         Planned Release: None
              Regression: No
           Work Required: None
          Patch Included: No


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Follow-up Comments:


-------------------------------------------------------
Date: Thu 20 Apr 2023 10:17:29 PM UTC By: Anonymous
Attempting to invoke wget with the --convert-links / -k parameter works as
intended, but fails to account for the fact that CSS url() parameters cannot
contain spaces.
In my case, wget invoked on Apr 20, 2023 with
    wget -rk -l 1 https://www.calpoly.edu/
converted the filename
    20200115-Sailplane-JoeJ0583-min%20%281%29.jpg
to
    20200115-Sailplane-JoeJ0583-min (1).jpg
.

The page uses the CSS
    background-image:
url(/sites/calpoly.edu/files/styles/width_2048px/public/2020-01/20200115-Sailplane-JoeJ0583-min%20%281%29.jpg?itok=QrMTAlEd)
on a div, which breaks when containing a space.

This bug has likely always been in wget. Here is a Stack Overflow question
detailing the bug from 10 years ago:
https://stackoverflow.com/questions/13300017/wget-download-relative-link-conversion-misses-whitespace-encoding-for-css-url

There is no relevant wget output for this bug.







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