Mobiperl Mobiperl - Perl tools for handling MobiPocket files - Page 35

tompe · 05-11-2008, 08:05 PM

Quote:

Originally Posted by JeffElkins

>>/usr/local/share/perl/5.8.8/Palm/PDB.pm line 537.

Tommy, I'm starting to think that this isn't your error. You don't install anything into /usr/local/share/perl, AFAIK. I'm going to mull this one over for a while...

I suspect that your PDB.pm might be an old version. Either that or the files are corrupted in some way... Or if you did get PDB.pm from CPAN maybe it is newer... Look in your PDB.pm and see what triggers the error message.

artbatista · 05-13-2008, 05:06 PM

I have a very large MOBI book (200 MB) that locks up mobi2html (Win32 version).

I wonder if you ever did any work on the mobi2opf program?

I could really use it to explode that mobi book, make my changes and then recompile.

It locks up here, everytime:

-------------------------------

C:\mobi>mobi2html wikipedia.prc TEST
FULLFILENAME: WIKIPEDIA.prc
FILENAME: Wikipedia.prc
UNPACK DIRECTORY: TEST
Name: WIKIPEDIA
Version: 0
Type: BOOK
Creator: MOBI
baktime: -2082844800
Number of record: 44225
PDHEADER Version: 2
PDHEADER Length: 359699601
PDHEADER NRecords: 43910
PDHEADER Recsize: 8192
PDHEADER Unknown: 0
MOBIHEADER doctype: MOBI
MOBIHEADER length: 228
MOBIHEADER type: 2
MOBIHEADER codep: 1252
MOBIHEADER uniqid: 1422104427
MOBIHEADER ver: 6
MOBIHEADER exthflg: 80
EXTH doctype: EXTH
EXTH length: 220
EXTH n_items: 9
ITEM: 64 11 - 100 17 - Wikipedia
ITEM: 65 11 - 101 17 - Wikipedia
ITEM: 6e 11 - 110 17 - REF010000
ITEM: 69 15 - 105 21 - Encyclopedias
ITEM: 67 2e - 103 46 - 1.5 Million Wikipedia english articles
ITEM: 12c 36 - 300 54 - 0x300080000000000800000000000000000f9beefe41e01e71 e61d6
2a2
ITEM: c9 c - 201 12 - 0x0002
ITEM: cb c - 203 12 - 0x0000
ITEM: ca c - 202 12 - 0x0003
Version: 2 - 2 - DOC_COMPRESSED

--------------------------------------------

Here is the file, in case you wish to experiment:

http://www.artbatista.com/files/Wikipedia.prc

Cheers

Art

Quote:

Originally Posted by tompe

I am also planning to write a mobi2opf program that explodes a MobiPocket file and tries to create an OPF structure.

tompe · 05-13-2008, 06:51 PM

I did not do anything about the mobi2opf idea. I added a ticket for this so it is not forgotten. Maybe I get inspired sometimes...

I will test the file but I have not tested so large files before.

delphidb96 · 05-13-2008, 09:32 PM

Quote:

Originally Posted by tompe

I did not do anything about the mobi2opf idea. I added a ticket for this so it is not forgotten. Maybe I get inspired sometimes...

I will test the file but I have not tested so large files before.

I know I've seen it somewhere but I can't seem to find it... Again, where's the webpage with the header information of a typical mobi/prc ebook file?

Derek

wallcraft · 05-13-2008, 09:35 PM

The command mobi2oeb, part of calibre is another alternative, which works for all MOBI compression schemes. It produces a .opf file, but not a full feature .opf file.

achatham · 05-22-2008, 07:05 PM

Quote:

Originally Posted by tompe

I suspect that your PDB.pm might be an old version. Either that or the files are corrupted in some way... Or if you did get PDB.pm from CPAN maybe it is newer... Look in your PDB.pm and see what triggers the error message.

It's caused by the name built into the mobi file not being null-terminated. If I pass --title "Foo" to html2mobi, I can then use mobi2html to extract it.

Unfortunately, I get "The selected item could not be opened..." on my kindle whenever I try to view these mobi files.

tompe · 05-23-2008, 06:01 AM

Quote:

Originally Posted by achatham

It's caused by the name built into the mobi file not being null-terminated. If I pass --title "Foo" to html2mobi, I can then use mobi2html to extract it.

But --title is the book title and that should not matter...

When you say "name built into the mobifile" do you mean the datatase name?

Could you give me the compleat commands you use to produce one book that cannot be unpacked and one that can be unpacked?

Quote:

Unfortunately, I get "The selected item could not be opened..." on my kindle whenever I try to view these mobi files.

If you give me one of these files I will test if it can be opened on my Cybook.

achatham · 06-02-2008, 10:47 PM

Quote:

Originally Posted by tompe

But --title is the book title and that should not matter...

When you say "name built into the mobifile" do you mean the datatase name?

Could you give me the compleat commands you use to produce one book that cannot be unpacked and one that can be unpacked?

If you give me one of these files I will test if it can be opened on my Cybook.

It turns out that it's the title length that it has a problem with. This works:

Code:

<html>
<head><title>0123456789012345678901234567890</title></head>
<body>The document goes here.</body></html>

Add one more character to the title, and it'll barf with the "bogus database name" error. I'm running "html2mobi foo.html && mobi2html foo.mobi foo/" on a mac, with dependencies retrieved via cpan and fink.

The following document will convert, but won't load on the kindle:

Code:

<html>
<head>
<title>Broken Document </title>
<script language="JavaScript1.2" src=""></script>
</head>
<body>
<script type="text/javascript" src=""></script>
The text goes here.
</body></html>

If I comment out the first script tag, it will load on the kindle, but I can't see "The text goes here." If I remove both script tags, I can see the text. I've attached test.mobi, which I generated with "html2mobi test.html".

tompe · 06-03-2008, 09:05 AM

Ah, yes the database name can be only 31 or 32 characters. I thought the Perl module that saves the file checked this length and truncated it but obviously it does not do this. I will add this in my code for the next version.

DaleDe · 06-03-2008, 09:49 AM

Quote:

Originally Posted by tompe

Ah, yes the database name can be only 31 or 32 characters. I thought the Perl module that saves the file checked this length and truncated it but obviously it does not do this. I will add this in my code for the next version.

As I recall it also needs to be terminated C style with a null byte.

Dale

tompe · 06-03-2008, 10:28 AM

The Perl code that packs it is:

Code:

 $header = pack "a32 n n N N N N N N a4 a4 N",
                $self->{name},
                $attributes,

a32 means a string with maximum length 32 that will be null padded. So the length 31 should work in the current version but 32 will not work.

Hadrien · 06-03-2008, 11:02 AM

I just saw that Mobipocket released an alpha version for mobigen: http://www.mobipocket.com/soft/prcge...n_linux.tar.gz

Anyone tried to compare Mobiperl with this alpha ?

igorsk · 06-04-2008, 06:53 AM

Quote:

Originally Posted by Hadrien

I just saw that Mobipocket released an alpha version for mobigen: http://www.mobipocket.com/soft/prcge...n_linux.tar.gz
Anyone tried to compare Mobiperl with this alpha ?

Mmm, unstripped symbols, yummy!

Code:

CxImage::SetPaletteColor(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char)
PDBFile::release_raw_file()
ElimTree::huffman_dico_codes_write(HuffmanEncoder&, PalmDatabase*)
MBPJavaScript::find_labelled_statement(MBPJavaScript::SParsingContext&, unsigned long const MBPJavaScript::SLabelledStatement::*, MBPJavaScript::SLabelledStatement*&, StrDescriptor const*)
MBPDate::from_string_iso_8601(String const&)
_TIFFsetShortArray
Octree::make_sorted_palette(RGBType*, bool)
HtmlParser::on_write_css_deco(RawFile&, unsigned long)
png_set_strip_alpha
jas_image_strtofmt
XmlNode::nullify()
CharacterAnalyser::stat_entity(unsigned char const*, unsigned long)
png_write_sCAL
jpeg_set_colorspace
f_need_translation_table(unsigned long, unsigned long, bool)

TadW · 06-05-2008, 06:24 PM

Quote:

Originally Posted by igorsk

Mmm, unstripped symbols, yummy!

It's like reading the source code, isn't it?

Well, they must have discovered their mistake -- the file has already been pulled.

Does anyone have a copy of the Linux version??

woofb · 06-09-2008, 09:50 AM

Help, cannot get perl to make. I have a Mac (OS X) and a Linux tiny laptop (eeePC). Both of them report a reasonable version of Perl (5.8.8) but throw an error on any attempt to make anything, including Palm::PDB &c. I can download from cpan, but everything seems to crash & burn at the last minute.

I get up to "Checking if your kit is complete. Looks good" and then I
get:
Writing Makefile for [whatever] -- NOT OK
Running make test.
Can't test without successful make.
Running make install
make had returned bad status, install seems impossible

'which make' doesn't turn up anything.

What am I doing wrong?

06-03-2008, 10:28 AM	#521
tompe Grand Sorcerer Posts: 7,452 Karma: 7185064 Join Date: Oct 2007 Location: Linköpng, Sweden Device: Kindle Voyage, Nexus 5, Kindle PW	The Perl code that packs it is: Code: $header = pack "a32 n n N N N N N N a4 a4 N", $self->{name}, $attributes, a32 means a string with maximum length 32 that will be null padded. So the length 31 should work in the current version but 32 will not work.

06-09-2008, 09:50 AM	#525
woofb Junior Member Posts: 9 Karma: 10 Join Date: May 2007	Perl problem Help, cannot get perl to make. I have a Mac (OS X) and a Linux tiny laptop (eeePC). Both of them report a reasonable version of Perl (5.8.8) but throw an error on any attempt to make anything, including Palm::PDB &c. I can download from cpan, but everything seems to crash & burn at the last minute. I get up to "Checking if your kit is complete. Looks good" and then I get: Writing Makefile for [whatever] -- NOT OK Running make test. Can't test without successful make. Running make install make had returned bad status, install seems impossible 'which make' doesn't turn up anything. What am I doing wrong?

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05-13-2008, 06:51 PM	#513
tompe Grand Sorcerer Posts: 7,452 Karma: 7185064 Join Date: Oct 2007 Location: Linköpng, Sweden Device: Kindle Voyage, Nexus 5, Kindle PW	I did not do anything about the mobi2opf idea. I added a ticket for this so it is not forgotten. Maybe I get inspired sometimes... I will test the file but I have not tested so large files before.

05-13-2008, 09:35 PM	#515
wallcraft reader Posts: 6,977 Karma: 5183568 Join Date: Mar 2006 Location: Mississippi, USA Device: Kindle 3, Kobo Glo HD	The command mobi2oeb, part of calibre is another alternative, which works for all MOBI compression schemes. It produces a .opf file, but not a full feature .opf file.

06-03-2008, 09:05 AM	#519
tompe Grand Sorcerer Posts: 7,452 Karma: 7185064 Join Date: Oct 2007 Location: Linköpng, Sweden Device: Kindle Voyage, Nexus 5, Kindle PW	Ah, yes the database name can be only 31 or 32 characters. I thought the Perl module that saves the file checked this length and truncated it but obviously it does not do this. I will add this in my code for the next version.

06-03-2008, 11:02 AM	#522
Hadrien Feedbooks.com Co-Founder Posts: 2,263 Karma: 145123 Join Date: Nov 2006 Location: Paris, France Device: Sony PRS-t-1/350/300/500/505/600/700, Nexus S, iPad	I just saw that Mobipocket released an alpha version for mobigen: http://www.mobipocket.com/soft/prcge...n_linux.tar.gz Anyone tried to compare Mobiperl with this alpha ?

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