This repository showcases a bad interaction between Zope2's XML-RPC support and ATImage's setImage mutator.
How to reproduce this error:
$ git clone git://github.com/aclark4life/xmlrpc_setimage_wtf.git
$ cd xmlrpc_setimage_wtf
$ python2.6 bootstrap.py -d
$ bin/buildout
$ bin/plone start
$ python wtf.pyYou should see results like below.
wtf.py contains code to create a Document, Folder, and Image. The Document and Folder code works fine, the Image code fails with a 500 status code (and no traceback).
Looks like this:
$ python wtf.py
<ProtocolError for admin:admin@localhost:8080/Plone: 302 Moved Temporarily>
<ProtocolError for admin:admin@localhost:8080/Plone: 302 Moved Temporarily>
<ProtocolError for admin:admin@localhost:8080/Plone: 302 Moved Temporarily>
<ProtocolError for admin:admin@localhost:8080/Plone/screenshot.png: 500 Internal Server Error>Since the transaction works fine, I ignore the 302s. The 4th error is the problem.
Looks like this:
$ python wtf.py
The id is invalid - it is already in use.
The id is invalid - it is already in use.
The id is invalid - it is already in use.
<ProtocolError for admin:admin@localhost:8080/Plone/screenshot.png: 500 Internal Server Error>We can ignore the "id in use" messages because they are expected. setImage continues to fail. Weird. And hard to get more info.
Fixed by adding an adapter to plone.app.blob: