backend notification apparent false positive

[asylumcs]

A recent backend notification recently came through for 22261. It included: "...sideborder.gif" does not appear to match the media type image/gif, as specified in the OPF file. All three gifs are reported as not being GIFs but they are:

capO.gif: GIF image data, version 89a, 72 x 69
capT.gif: GIF image data, version 89a, 62 x 74
sideborder.gif: GIF image data, version 89a, 15 x 157

It looks like EBM is not correctly detecting those as GIF images and then sending a false positive backend notification to the user.

[eshellman]

That message would be coming from the EPUB validator. How did you validate the three gifs?

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On Dec 1, 2023, at 1:23 PM, Roger Frank ***@***.***> wrote: A recent backend notification recently came through for 22261. It included: "...sideborder.gif" does not appear to match the media type image/gif, as specified in the OPF file. All three gifs are reported as not being GIFs but they are: capO.gif: GIF image data, version 89a, 72 x 69 capT.gif: GIF image data, version 89a, 62 x 74 sideborder.gif: GIF image data, version 89a, 15 x 157 It looks like EBM is not correctly detecting those as GIF images and then sending a false positive backend notification to the user. — Reply to this email directly, view it on GitHub <#207>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAHCGMNDDCHVX36F5FBOHB3YHIOB3AVCNFSM6AAAAABADHG4IWVHI2DSMVQWIX3LMV43ASLTON2WKOZSGAZDCMZXHA2DSMY>. You are receiving this because you are subscribed to this thread.

[eshellman]

The image file in the epub is indeed a png file; I'm preparing a dot release for ebookmaker, I'll take a look to see what's going on - evidently ebookmaker's imgae code is writing a png and forgetting to change the file name.

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On Dec 1, 2023, at 1:23 PM, Roger Frank ***@***.***> wrote: A recent backend notification recently came through for 22261. It included: "...sideborder.gif" does not appear to match the media type image/gif, as specified in the OPF file. All three gifs are reported as not being GIFs but they are: capO.gif: GIF image data, version 89a, 72 x 69 capT.gif: GIF image data, version 89a, 62 x 74 sideborder.gif: GIF image data, version 89a, 15 x 157 It looks like EBM is not correctly detecting those as GIF images and then sending a false positive backend notification to the user. — Reply to this email directly, view it on GitHub <#207>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAHCGMNDDCHVX36F5FBOHB3YHIOB3AVCNFSM6AAAAABADHG4IWVHI2DSMVQWIX3LMV43ASLTON2WKOZSGAZDCMZXHA2DSMY>. You are receiving this because you are subscribed to this thread.

[nfenwick]

Eric: "How did you validate the three gifs?"

I validated the three gifs with the file utility against the files that were sent up.

[nfenwick]

Whoops. Didn't realize I was logged in as Nell.
nfenwick = asylumcs (rfrank).