Fix: get cover from malformed epubs

lib/epub-reader/package.rb

@@ -108,8 +108,9 @@ def toc
     def cover
       cover_meta     = metadata.css('[name="cover"]')
       meta_content   = cover_meta.size == 1 ? cover_meta.attr('content') : nil
-      cover_content  = meta_content || manifest.css('[properties="cover-image"]').attr('id').to_s
-      relative_content_path + (cover_content.to_s.match(/\.(gif|jpe?g|png)/) ? cover_content : resources.css("##{cover_content}").attr('href').to_s)
+      cover_tag      = meta_content || manifest.css('[properties="cover-image"]')
+      cover_content  = cover_tag.size > 0 ? cover_tag.attr('id').to_s : nil
+      cover_content  ? relative_content_path + (cover_content.to_s.match(/\.(gif|jpe?g|png)/) ? cover_content : resources.css("##{cover_content}").attr('href').to_s) : ""
     end
 
     # TODO: to parse

lib/epub-reader/version.rb

@@ -1,5 +1,5 @@
 module Epub
   class Reader
-    VERSION = "0.0.7"
+    VERSION = "0.0.8"
   end
 end

teste.rb

@@ -1,9 +1,9 @@
-`rake install`
+# `rake install`
 require 'rubygems'
 require 'epub-reader'
 
-hd = '/home/fernando/trabalho/livros_e_apostilas/EPUB/hd.epub'
+hd = '/home/fernando/Dropbox/trabalho/livros_e_apostilas/EPUB/e_book_Marketing.epub'
 
 f1 = Epub::Reader.open(hd)
 
-puts f1.title
+puts f1.cover