HTMLParseError

[Guillaume Dufloux]

Hi,

Trac comes to an error when parsing a specific ruby expression. It seems to come from the python library HTMLParser.py, but impacts Trac when rendering through ruby wiki processor.

You can find such string in Rails application for instance: rails/actionpack/lib/action_view/helpers/text_helper.rb:390:

%(#{a}<a href="#{b=="www."?"http://www.":b}#{c}"#{extra_options}>#{text}</a>#{d})

Obviously, i did not use the ruby wiki processor to display this line, or you would never access this ticket lol (i used 'text'). However, the same line with some spaces added in the evaluated part (condition b=="www.") raises no error:

%(#{a}<a href="#{b=="www." ? "http://www." :b}#{c}"#{extra_options}>#{text}</a>#{d})

So that here, i can use the ruby wiki processor:

%(#{a}<a href="#{b=="www." ? "http://www." :b}#{c}"#{extra_options}>#{text}</a>#{d})

If you want a live demo, just have a look ​here.

Here is the traceback (most recent call last):

File "/opt/csw/lib/python2.3/site-packages/trac/web/main.py", line 406, in dispatch_request
dispatcher.dispatch(req)

File "/opt/csw/lib/python2.3/site-packages/trac/web/main.py", line 244, in dispatch
req.display(template, content_type or 'text/html')

File "/opt/csw/lib/python2.3/site-packages/trac/web/api.py", line 358, in display
data = self.hdf.render(template, form_token)

File "/opt/csw/lib/python2.3/site-packages/trac/web/clearsilver.py", line 296, in render
injector.feed(template.render())

File "/opt/csw/lib/python2.3/HTMLParser.py", line 108, in feed
self.goahead(0)

File "/opt/csw/lib/python2.3/HTMLParser.py", line 150, in goahead
k = self.parse_endtag(i)

File "/opt/csw/lib/python2.3/HTMLParser.py", line 327, in parse_endtag
self.error("bad end tag: %s" % `rawdata[i:j]`)

File "/opt/csw/lib/python2.3/HTMLParser.py", line 115, in error
raise HTMLParseError(message, self.getpos())

HTMLParseError: bad end tag: '</p">', at line 526, column 176

Regards, Guillaume

[Christian Boos]

Another one of the MostFrequentDuplicates.

Duplicate of #4365.