epub issues in leanpub

[commjoen]

AFter the book fixes, we end up with the following issues from leanpub on our epub format:

We found the following errors:      
We found the following problems with your epub file:
- Error while parsing file 'value of attribute "id" is invalid; must be an XML name without colons'.  
- Error while parsing file 'element "img" missing required attribute "alt"'.  
- Error while parsing file 'element "pin_" not allowed anywhere; expected the element end-tag, text or element "a", "abbr", "acronym", "applet", "b", "bdo", "big", "br", "cite", "code", "del", "dfn", "em", "i", "iframe", "img", "ins", "kbd", "map", "noscript", "ns:svg", "object", "q", "samp", "script", "small", "span", "strong", "sub", "sup", "tt" or "var" (with xmlns:ns="http://www.w3.org/2000/svg")'.  
- Error while parsing file 'element "application.app" not allowed anywhere; expected the element end-tag, text or element "a", "abbr", "acronym", "applet", "b", "bdo", "big", "br", "cite", "code", "del", "dfn", "em", "i", "iframe", "img", "ins", "kbd", "map", "noscript", "ns:svg", "object", "q", "samp", "script", "small", "span", "strong", "sub", "sup", "tt" or "var" (with xmlns:ns="http://www.w3.org/2000/svg")'. 

[commjoen]

Basically it means we have to use real markdown URL markup , alt in img tags and then see if it works again.

[TheDauntless]

You can test with this library: https://github.com/w3c/epubcheck/releases

java -jar epubcheck.jar ../owasp-mstg/Generated/MSTG-EN.epub

I fixed a few, but I have no idea why the following is still not working correctly:

ERROR(RSC-005): /Users/jbeckers/Documents/Projects/owasp_push/owasp-mstg/Generated/MSTG-EN.epub/0x05g-Testing-Network-Communication.html(145,122): Error while parsing file: element "pin_" not allowed anywhere; expected the element end-tag, text or element "a", "abbr", "acronym", "applet", "b", "bdo", "big", "br", "cite", "code", "del", "dfn", "em", "i", "iframe", "img", "ins", "kbd", "map", "noscript", "ns:svg", "object", "q", "samp", "script", "small", "span", "strong", "sub", "sup", "tt" or "var" (with xmlns:ns="http://www.w3.org/2000/svg")
ERROR(RSC-005): /Users/jbeckers/Documents/Projects/owasp_push/owasp-mstg/Generated/MSTG-EN.epub/0x06b-Basic-Security-Testing.html(184,64): Error while parsing file: element "img" missing required attribute "alt"
ERROR(RSC-005): /Users/jbeckers/Documents/Projects/owasp_push/owasp-mstg/Generated/MSTG-EN.epub/0x06b-Basic-Security-Testing.html(185,44): Error while parsing file: element "img" missing required attribute "alt"

They should be easy fixes, but my computer isn't cooperating today :).

Can someone take a look (git checkout FixEPUB)? It's basically 3 lines that need to be edited...