[GUI Plugin] FanFicFare

[JimmXinu]

Originally Posted by belton180

When updating multiple fics from sufficient velocity, all failed with the following error: Background Job Failed, see Calibre Jobs log.

After checking each fic one by one, only one fic remained with the error.

The URL is https://forums.sufficientvelocity.co...-quest.136754/ and attached is a copy of the debug log.

That a problem we've seen before in github issue 1298. In fact, it was with the same story.

It's caused by Calibre's image processing not handling SVG files well in background jobs (it's Qt's fault, as usual).

FFF has code to not process SVG files, but it looks specifically for '.svg' and that story has SVG files named like ".../research_sfdp-svg.7211/"

You can avoid it by using no_image_processing_regexp to not do image processing on any file containing 'svg' in the URL:

[https://forums.sufficientvelocity.com/threads/vox-vitae-warhammer-ai-quest.136754]
no_image_processing_regexp:svg

This has come up twice now, but OTOH, it's in the same story. I will do a bit more investigation about whether that setting should be in defaults.ini, or the .svg avoidance code expanded. Or we chalk it up to one weird story...

[HoppHagg]

Hi JimmXinu,

I've attached the requested the log.

Thank you :-)

[HoppHagg]

Originally Posted by HoppHagg

Hi JimmXinu,

I've attached the requested the log.

Thank you :-)

For comparison I've attached the debug log for version 4.53, maybe that's helpful. Thanks :-)

[JimmXinu]

Originally Posted by HoppHagg

Hi JimmXinu,

I've attached the requested the log.

Thank you :-)

This is being caused by embedded fonts in CSS being interpreted by FFF as images. I forgot CSS url() could be used for fonts when I wrote that code.

To determine how FFF should handle this, I first need to know how did you get embedded fonts in the first place?

[HoppHagg]

I've downloaded the font from here "https://papierlos-lesen.de/bookerly-fuer-cybook-kobo-pocketbook/" and installed them via 'windows/control panel/fonts'.

Then I use at first the 'modify epub' plugin and afterwards I use calibre's internal 'convert' function, where I can select to embed the desired font.

Thanks in advance, Marc

[JimmXinu]

Originally Posted by HoppHagg

I've downloaded the font from here "https://papierlos-lesen.de/bookerly-fuer-cybook-kobo-pocketbook/" and installed them via 'windows/control panel/fonts'.

Then I use at first the 'modify epub' plugin and afterwards I use calibre's internal 'convert' function, where I can select to embed the desired font.

Okay. I will fix FFF to not fail entirely on embedded fonts.

But FFF will not keep embedded fonts on update. That's how it worked in v4.53, too.

[HoppHagg]

JimmXinu, thank you very much for your quick replies :-)

Kind regards, Marc

[JimmXinu]

New Test Version Posted

2026-02-05
- Ignore CSS url() when ttf/otf/woff/woff2 font files

For HoppHagg, only matters if user has manually embedded font files. Note that FFF will discard the embedded font files on update, but will not crash now.

[HoppHagg]

Originally Posted by JimmXinu

New Test Version Posted

2026-02-05
- Ignore CSS url() when ttf/otf/woff/woff2 font files

This version works flawlessly, again, many thanks, JimmXinu :-)

Kind regards, Marc

[JimmXinu]

New Test Version Posted

2026-02-05
- Ignore CSS url() when ttf/otf/woff/woff2 font files
- Additional checks for svg images to reject--Calibre only. Related to #1298

Originally Posted by HoppHagg

This version works flawlessly, again, many thanks, JimmXinu :-)

Kind regards, Marc

Regarding belton180's issue with a weirdly named svg URL:

Spoiler:

https://forums.sufficientvelocity.com//attachments/research_sfdp-svg.7211/

I'm not prepared to reject all images with 'svg' in the URL--I can absolutely see someone naming their converted file logo_svg.jpg.

But I did add some code to look at the first 1000 bytes of each image for '<svg ' or 'xmlns="http://www.w3.org/2000/svg".