media type in the manifest

rubeus · 05-12-2015, 03:00 AM

Hi,

how does Sigil determine the media type of fonts in the manifest? Checking the code often brings up wrong media types like octet-stream, but unfortunetly there is no way of correcting this in an efficient way. I need to type it in or do a search and replace.

//rubeus

KevinH · 05-12-2015, 08:58 AM

It uses the media-type provided by the incoming manifest or alternatively the file extension (.ttf, .otf, etc) via a short lookup dictionary when the font is first selected/imported.

rubeus · 05-12-2015, 12:08 PM

Thx, may it be possible to post the mapping table?

KevinH · 05-12-2015, 02:23 PM

Here is the link:

https://github.com/user-none/Sigil/b...PFResource.cpp

At the very bottom of this file you will find a mapping table.

The plugin uses its own version of this and they may not be fully in sync but they are close. In a plugin launcher code there is a easy way to get the media-type if you provide the basename of the file with extension. It also provides the media-type for every font file. So the plugin should already easily be able to supply you with the media-type for any file existing in the epub that has an entry in the manifest.

KevinH

rubeus · 05-13-2015, 01:49 AM

Thanks so far. What i'm looking for is something to change the media-type if flightcrew is complaining against "wrong" ones. Flightcrew complains, but there is no way of fixing that except manual work.
I think there is no reader/app available which will not work properly if the media type is weird, but i like to have an error reporting clean instead of deciding all the time if an error can be ignored or not.

JSWolf · 05-13-2015, 04:51 AM

Quote:

Originally Posted by rubeus

Thanks so far. What i'm looking for is something to change the media-type if flightcrew is complaining against "wrong" ones. Flightcrew complains, but there is no way of fixing that except manual work.
I think there is no reader/app available which will not work properly if the media type is weird, but i like to have an error reporting clean instead of deciding all the time if an error can be ignored or not.

Ignore FlightCrew. It misses way too many errors. Use epubcheck to check for errors.

rubeus · 05-13-2015, 04:55 AM

As far as i know epubcheck requires Java. I dont have this and will not install it. Too many security holes in Java, just like Flash.

JSWolf · 05-13-2015, 04:58 AM

Quote:

Originally Posted by rubeus

As far as i know epubcheck requires Java. I dont have this and will not install it. Too many security holes in Java, just like Flash.

As an alternative, you could use the error checker built into the Calibre eBook editor.

But don't rely on FlightCrew. It's just not good enough.

Toxaris · 05-13-2015, 06:01 AM

You can install Java and still disable usage from the browser.

rubeus · 05-13-2015, 06:25 AM

There is no need to deactivate something if you install the server version of Java. There are no plugins, no install activities, just a bunch of files to be stored somewhere.
But this is not the point. Flightcrew is throwing some errors which i want to handle more efficiently. Thats why i asked how Sigil is determining the needed media-type.

KevinH · 05-13-2015, 07:56 AM

Please post the current manifest entry and the error message from flightcrew

KevinH

rubeus · 05-13-2015, 08:13 AM

Well, Flightcrew is complaining that application/octet-stream is not a valid mesia type and should be application/vnd.ms-opentype

Thats correct cause in the manifest it is octet-stream. Now i have to go to the content.opf hand need to change it manually. There is no way to copy the correct media type out of the error window to paste it in nor any other way of double clicking right clicking. I'm looking for a way to simplify this as Sigil/Flightcrew does know what the caorrect value is but offers nothing to correct it.

Toxaris · 05-13-2015, 11:37 AM

What font are you adding? I can't remember seeing octet-stream as media type while adding fonts.

Doitsu · 05-13-2015, 12:11 PM

You could automate mimetype replacements with Saved Searches:

Unzip the attached .ini file and import it. (Tools > Saved Searches... > Import)
Select the desired mimetype, click Load Search and Close.
Select the .opf file, press CTRL+F, select Current File and replace all font mimetypes.

DiapDealer · 05-13-2015, 12:31 PM

Quote:

Originally Posted by Toxaris

What font are you adding? I can't remember seeing octet-stream as media type while adding fonts.

Perhaps it's being encountered in malformed, pre-existing epubs?

@OP: I'd suggest a plugin that checks font-file extensions and then finds the corresponding opf manifest entry and adjusts the mimetype if necessary. You could probably incorporate it into your Clean OPF plugin.

05-12-2015, 03:00 AM	#1
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	media type in the manifest Hi, how does Sigil determine the media type of fonts in the manifest? Checking the code often brings up wrong media types like octet-stream, but unfortunetly there is no way of correcting this in an efficient way. I need to type it in or do a search and replace. //rubeus

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05-12-2015, 08:58 AM	#2
KevinH Sigil Developer Posts: 7,654 Karma: 5433388 Join Date: Nov 2009 Device: many	It uses the media-type provided by the incoming manifest or alternatively the file extension (.ttf, .otf, etc) via a short lookup dictionary when the font is first selected/imported.

05-12-2015, 12:08 PM	#3
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	Thx, may it be possible to post the mapping table?

05-12-2015, 02:23 PM	#4
KevinH Sigil Developer Posts: 7,654 Karma: 5433388 Join Date: Nov 2009 Device: many	Here is the link: https://github.com/user-none/Sigil/b...PFResource.cpp At the very bottom of this file you will find a mapping table. The plugin uses its own version of this and they may not be fully in sync but they are close. In a plugin launcher code there is a easy way to get the media-type if you provide the basename of the file with extension. It also provides the media-type for every font file. So the plugin should already easily be able to supply you with the media-type for any file existing in the epub that has an entry in the manifest. KevinH

05-13-2015, 01:49 AM	#5
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	Thanks so far. What i'm looking for is something to change the media-type if flightcrew is complaining against "wrong" ones. Flightcrew complains, but there is no way of fixing that except manual work. I think there is no reader/app available which will not work properly if the media type is weird, but i like to have an error reporting clean instead of deciding all the time if an error can be ignored or not.

05-13-2015, 04:55 AM	#7
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	As far as i know epubcheck requires Java. I dont have this and will not install it. Too many security holes in Java, just like Flash.

05-13-2015, 06:01 AM	#9
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	You can install Java and still disable usage from the browser.

05-13-2015, 06:25 AM	#10
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	There is no need to deactivate something if you install the server version of Java. There are no plugins, no install activities, just a bunch of files to be stored somewhere. But this is not the point. Flightcrew is throwing some errors which i want to handle more efficiently. Thats why i asked how Sigil is determining the needed media-type.

05-13-2015, 07:56 AM	#11
KevinH Sigil Developer Posts: 7,654 Karma: 5433388 Join Date: Nov 2009 Device: many	Please post the current manifest entry and the error message from flightcrew KevinH

05-13-2015, 08:13 AM	#12
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	Well, Flightcrew is complaining that application/octet-stream is not a valid mesia type and should be application/vnd.ms-opentype Thats correct cause in the manifest it is octet-stream. Now i have to go to the content.opf hand need to change it manually. There is no way to copy the correct media type out of the error window to paste it in nor any other way of double clicking right clicking. I'm looking for a way to simplify this as Sigil/Flightcrew does know what the caorrect value is but offers nothing to correct it.

05-13-2015, 11:37 AM	#13
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	What font are you adding? I can't remember seeing octet-stream as media type while adding fonts.

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