is_dir can be null on blacklisted files

[kokspflanze]

if you set blacklisted_files in your config like

'blacklisted_files' => [
    '.htaccess',
    'Thumbs.db',
    'thumbs.db',
],

than is the is_dir parameter null but the getPreviewLink method require a bool, so it generate a error and the activity page hangs.

[nickvergessen]

Can you instead add a casting to boolean in the ViewInfoCache class when we set the value?
Thanks a lot

[nickvergessen]

/backport to stable17

[nickvergessen]

/backport to stable16

[kokspflanze]

@nickvergessen i was thinking about this too, but i was thinking null is needed to know if a file is blacklisted.

but i will change it

[backportbot-nextcloud]

backport to stable17 in #407

[nickvergessen]

/backport to stable16

[backportbot-nextcloud]

backport to stable16 in #408