Form Submission returns 'RuntimeError: No Content-Length header set'

[Andrew Bates]

How to Reproduce

While doing a POST operation on /formdata/update, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'__FORM_TOKEN': u'c84efd0f761efab57bb9b69c',
 '__backpath__': u'/projects/andyland/wiki/ShoppingLists',
 '__basever__': u'1271359721',
 '__context__': u'/wiki/ShoppingLists',
 '__track_fields__': u'yes',
 'dishwasher_detergent': u'on',
 'toothpaste': u'on',
 'trashbags_kitchen': u'on',
 'ziplockbags_gallon': u'on'}

User Agent was: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.3) Gecko/20100413 Gentoo Firefox/3.6.3

System Information

Trac	0.12dev-r9405
CustomFieldAdmin	0.2.2
Docutils	0.6
Genshi	0.6dev-r1096
mod_wsgi	3.1 (WSGIProcessGroup trac WSGIApplicationGroup %{GLOBAL})
Pygments	1.3.1
pysqlite	2.6.0
Python	2.6.2 (r262:71600, Nov 19 2009, 09:21:43) [GCC 4.3.4]
RPC	1.0.6
setuptools	0.6
SQLite	3.6.22
Subversion	1.6.9 (r901367)
jQuery	1.4.2

Enabled Plugins

BatchModify	0.4.1
graphviz	0.7.6dev
NavAdd	0.1
PDFRedirector	0.1
timingandestimationplugin	0.9.0b
TracAccountManager	0.2.1dev-r7737
TracBzr	0.3.2-dev-20100401
TracCustomFieldAdmin	0.2.2
TracDateField	1.0.1
TracForms	0.3
TracMasterTickets	2.1.3
TracPrivateTickets	2.0.2
TracWysiwyg	0.2-r7772
TracXMLRPC	1.0.6

Python Traceback

Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/Trac-0.12dev_r9405-py2.6.egg/trac/web/main.py", line 514, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib64/python2.6/site-packages/Trac-0.12dev_r9405-py2.6.egg/trac/web/main.py", line 235, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib64/python2.6/site-packages/TracForms-0.3-py2.6.egg/tracforms/formdata.py", line 55, in process_request
    req.write(str(e))
  File "/usr/lib64/python2.6/site-packages/Trac-0.12dev_r9405-py2.6.egg/trac/web/api.py", line 528, in write
    raise RuntimeError("No Content-Length header set")
RuntimeError: No Content-Length header set

[Andrew Bates]

adds appropriate 'Content-Length' headers to request responses

[Steffen Hoffmann]

(In [10141]) TracFormsPlugin: Rework changeset [9580], refs #6993.

Due to improper ticket handling the aforementioned report and suggested fix was gone largely unnoticed. Current code now resembles a slightly modified version of the patch. Thanks to andrewbates for the original contribution.

[Steffen Hoffmann]

(In [10143]) TracFormsPlugin: Releasing version 0.3, pushing development to 0.4, closes #3445, #3550, #3741, #4759 and #8258, refs #3388 and #6993.

This is a major release requiring a Trac environment upgrade.

While the parser logic remains unchanged, there is a lot new supplementary funcionality to make TracForms behave more like the existing Trac core resources (ticket, wiki, attachment, ...).

This version performs a series of non-trivial db schema changes, that especially may leave traces of stale forms (i.e. recorded for wiki pages, that don't exist anymore). So please make sure to read the changelog, BACKUP your environment(s) before installing this version as usual and check the new db tables forms, forms_fields and forms_history after upgrading.