Added a central URLFilter class to check & clean URLs used for
attachments, which is also used for validation, and by the purifier to
standardise protocols (and to make protocol config easier in future).
Thanks to mfk25 for reporting.
Upstream libraries used did not specifically treat values in srcset as
URIs like other attributes, so this adds a simple filter for possible
bad values.
Updated tests to cover.
Thanks for Gurmandeep Deol for reporting.
- Fixed issues picked up by PHPStan updates.
- Not sure why it was flagging the BookSorter issue, but swapping if
statements made it go away.
- Updated BookSortMapItem with modern syntax.
- Attempted to fix CI issues by adding DOM extension.
- Attempted to make migration CI more efficient via tmpfs
Updated allow list/purifier system to only allow file protocol use on
anchor hrefs to avoid potential security concerns with, after export,
content being auto loaded via interactive elements like
embeds/objects/videos etc...
Updated tests to cover.
Thanks to Gurmandeep Deol at Seneca Polytechnic for reporting.
