GET: /report internal error unsupported operand type(s) +: 'NoneType' and 'str'

[ciprian.parfon@…]

Hello

When I try to 'View Tickets' I get:

Oops…
Trac detected an internal error:

TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

There was an internal error in Trac. It is recommended that you notify your local
Trac administrator with the information needed to reproduce the issue.

To that end, you could a ticket.

The action that triggered the error was:

GET: /report

Here's the details of my setup:

Most recent call last:
File "/usr/lib64/python2.7/site-packages/trac/ticket/templates/report_list.html", line 99, in
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 1546, in format_to_html
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 1501, in generate
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 1283, in format
File "/usr/lib64/python2.7/re.py", line 151, in sub
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 1201, in replace
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 1197, in handle_match
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 591, in _lhref_formatter
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 621, in _make_lhref_link
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 656, in _make_link
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 661, in _make_intertrac_link
File "/usr/lib64/python2.7/site-packages/trac/wiki/formatter.py", line 667, in get_intertrac_url

Trac 1.0.1
Docutils 0.10
Genshi 0.7 (with speedups)
mod_wsgi 3.4 (WSGIProcessGroup svn WSGIApplicationGroup %{GLOBAL})
Pygments 1.6
pysqlite 2.6.0
Python 2.7.5 (default, Nov 26 2013, 18:44:35) [GCC 4.6.3]
pytz 2013d
setuptools 0.8
SQLite 3.8.2
Subversion 1.7.14 (r1542130)
jQuery 1.4.2

Enabled Plugins:

TracAccountManager 0.4.2 /usr/lib64/python2.7/site-packages

[Jun Omae]

Good catch! Reproduced by the following steps.

1. Create a report with [./@1#TheId] as description.
2. View report list page.

The issue is similar to #11302.

...
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/ticket/templates/report_list.html", line 99, in <Expression u'wiki_to_html(context, description)'>
    ${wiki_to_html(context, description)}
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 1546, in format_to_html
    return HtmlFormatter(env, context, wikidom).generate(escape_newlines)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 1501, in generate
    escape_newlines)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 1283, in format
    result = re.sub(self.wikiparser.rules, self.replace, line)
  File "/venv/trac/1.0.1/lib/python2.5/re.py", line 150, in sub
    return _compile(pattern, 0).sub(repl, string, count)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 1201, in replace
    replacement = self.handle_match(fullmatch)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 1197, in handle_match
    return internal_handler(match, fullmatch)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 591, in _lhref_formatter
    return self._make_lhref_link(match, fullmatch, rel, ns, target, label)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 621, in _make_lhref_link
    label, fullmatch)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 656, in _make_link
    return self._make_intertrac_link(ns, target, label) or \
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 661, in _make_intertrac_link
    res = self.get_intertrac_url(ns, target)
  File "/venv/trac/1.0.1/lib/python2.5/site-packages/trac/wiki/formatter.py", line 667, in get_intertrac_url
    url = intertrac.get(ns + '.url')
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

[Jun Omae]

Proposed patch in the following. I'll add functional tests for the issue.

trac/ticket/templates/report_list.html

@@ -96 +96 @@
               </a></h3>
             <span class="foldable" />
             <div py:if="description" class="description" xml:space="preserve">
-              ${wiki_to_html(context, description)}
+              ${wiki_to_html(context.child('report', id), description)}
             </div>
           </div>
         </py:when>

[Jun Omae]

Proposed changes in jomae.git@t11590 with functional tests.

[Ryan J Ollos]

Tested and looks good to me.

[Jun Omae]

Thanks for testing. Committed in [12697] and merged in [12698].