This commit introduces a new configuration section [markup] to refine
Misaka's Markdown extensions (by default strikethrough, superscript and
autolink).
Furthermore, you can set custom HTML elements/attributes that are
allowed, e.g. to enable images, set
[markup]
allowed-elements = img
allowed-attributes = src
The refactorization separates HTML sanitization from Markdown -> HTML
and allows to include new markup languages such as BB Code or
reStructuredText.
Python's HTMLParser is smart enough to filter malicious tags but fails
to repair invalid, user-inputted HTML. Instead of re-inventing the
wheel, Isso now uses html5lib's HTMLSanitizer with a whitelist of all
tags generated by Sundown.
Disallowed tags are discarded from the output to match the previous
unittests. This feature is only available for html5lib 0.99(9) and
later. Earlier releases just escape disallowed tags.
To be compatible with comments from Disqus (and users unfamiliar with
Markdown), Misaka no longer disables user-inputted HTML, but the
generated HTML is now post-processed and all "unsafe" tags (not
possible with Markdown) are discarded.
Whitelist: p, a, pre, blockquote, h1-h6, em, sub, sup, del, ins, math,
dl, ol, ul, li
This commit also removes an unnecessary newline generated by
Misaka/Sundown.
This commit now sanitizes *all* HTML tags written by the user (also
prevents auto-link to "unsafe" web protocols and images) as intended.
Fortunately because of Sundown's typography support, it did not affect
JS injection, but custom style tags and iframes.
PS: thanks to the anonymous submitter of a comment including a style tag
for 24pt, red font ;-)
This is a severe issue which makes the current voters bloomfilter
completely useless. Functions are first-class objects in Python, which
lead to interesting "issues" like:
>>> def foo(x=[]):
... x.append(1)
... print x
...
>>> foo()
[1]
>>> foo()
[1, 1]
For Isso, this means the bloomfilter, which is usually only initialized
with the author's IP address, is now initialized with pretty much all
ip addresses from previous authors, thus makes it impossible for the
author to vote on other's people comments.
Keep Isso modular, not monolithic. Make it easy to integrate a
web interface or add XMPP notifications.
This refactorization includes minor bugfixes and changes:
* CORS middleware did not work properly due to wrong unit tests
* more type checks on JSON input
* new detection for origin and public url, closes#28
* new activation and delete url (no redirect for old urls, but you can
convert the old urls: copy hash after `/activate/` (or delete) and
open `/id/<id of comment>/activate/<hash>`
* move crypto.py to utils/
With this commit, SMTP is no longer automatically configured: add
`notify = smtp` to the `[general]` section to use SMTP.
If you don't use a <h1> to markup your post's title (but h2), it
is no longer possible to reliable detect the site's title.
E.g. you have a single page with only one <h1> and that's the
*real* title of that page. But on the other hand, it is also
possible, that the <h1> tag is just your website's name and the
actual post title is marked up in <h2>.
Martin Zimmermann