vaporbook/epub-parser

A web-friendly epub file parser. Useful in browser-based reading systems, command-line ebook production toolsets, and more.

epub-parser's Issues

Error importing epub

I've encountered an error while parsing, here's the console output including a stack trace:

opsRoot is: (derived from content.opf)
parsing OPF data

events.js:72
throw er; // Unhandled 'error' event
^
TypeError: Cannot read property 'length' of undefined
at /Users/steveridout/code/readlang/node_modules/epub-parser/lib/epub-parser.js:234:36
at Parser. (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/lib/xml2js.js:384:20)
at Parser.emit (events.js:95:17)
at Object.onclosetag (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/lib/xml2js.js:348:26)
at emit (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/node_modules/sax/lib/sax.js:615:33)
at emitNode (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/node_modules/sax/lib/sax.js:620:3)
at closeTag (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/node_modules/sax/lib/sax.js:861:5)
at Object.write (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/node_modules/sax/lib/sax.js:1294:29)
at Parser.exports.Parser.Parser.parseString (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/lib/xml2js.js:403:31)
at Parser.parseString (/Users/steveridout/code/readlang/node_modules/epub-parser/node_modules/xml2js/lib/xml2js.js:6:61)

If you want I can privately share the offending .epub file to help reproduce the issue, I don't want to share it publicly since I don't own the copyright.

PS: thanks very much for this module!

License?

Is their no license to this repository? I can't seem to find one, it could just be me not looking hard enough though. I'm not sure that I'd be able to use this module without a license explicitly granting the permissions.

This line in package.json seems to suggest that the license is BSD.

How to contact Vaporbook?

Your project page says "Please report bugs to vaporbook on github", but there is no way for one user on GitHub to contact another user on GitHub.

I don't have a bug; I just want to know what epub-parser does. I want to extract the book text (not the metadata) from epubs, but it doesn't seem to do that.

simpleMeta is an Array - why?

if you select simpleMeta, it returns an array... why? wouldn't it be more useful to be just an object?

Fails to open Gutenberg ePubs

Although the test ePub works fine, I get this same error trying to open any ePub from Project Gutenberg:

[TypeError: Cannot read property '0' of undefined]
metadata element error: Cannot read property '0' of undefined
manifest element error: Cannot read property '0' of undefined
must throw this

Here's an example book:

https://dl.dropboxusercontent.com/u/382588/ocean2.0/development/gutenberg-710.epub

---

Seems this is where the error is thrown:

        function parsePackageElements() {         

          // operates on global vars
          try {
              metadata = opf[opfPrefix+"metadata"][0];
          } catch(e) {
              console.log('metadata element error: '+e.message);
          }
          try {
              manifest = opf[opfPrefix+"manifest"][0];

          } catch (e) {
              console.log('manifest element error: '+e.message);
              console.log('must throw this');
              throw (e);
          }
          try {
              spine = opf[opfPrefix+"spine"][0];
          } catch(e) {
              console.log('spine element error: '+e.message);
              console.log('must throw this');
              throw (e);
          }
          try {
              guide = opf[opfPrefix+"guide"][0];
          } catch (e) {
              ;
          }
        }

It looks like the manifest, spine and guide keys are expected to be prefixed with 'opf:' but they are not so in the object:

{ '$': 
   { 'xmlns:opf': 'http://www.idpf.org/2007/opf',
     'xmlns:dcterms': 'http://purl.org/dc/terms/',
     'xmlns:dc': 'http://purl.org/dc/elements/1.1/',
     'xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
     xmlns: 'http://www.idpf.org/2007/opf',
     version: '2.0',
     'unique-identifier': 'id' },
  metadata: 
   [ { 'dc:rights': [Object],
       'dc:identifier': [Object],
       'dc:creator': [Object],
       'dc:title': [Object],
       'dc:language': [Object],
       'dc:subject': [Object],
       'dc:date': [Object],
       'dc:source': [Object],
       meta: [Object] } ],
  manifest: [ { item: [Object] } ],
  spine: [ { '$': [Object], itemref: [Object] } ],
  guide: [ { reference: [Object] } ] }

Accessing to Epub's Content

Hi, thanks for this amazing tech. Right now I can access to the epub's metadata, my question is, it's posible to access all the contents?.