[ http://issues.apache.org/jira/browse/MODPYTHON-126?page=all ]
Graham Dumpleton reopened MODPYTHON-126:
----------------------------------------
Reopened because using PythonInterpPerDirective in conjunction with dynamically
registered filters causes mod_python to crash. Problem code is in
select_interp_name().
py_handler *fh;
if (fname) {
if (is_input) {
fh = (py_handler *)apr_hash_get(conf->in_filters, fname,
APR_HASH_KEY_STRING);
} else {
fh = (py_handler *)apr_hash_get(conf->out_filters, fname,
APR_HASH_KEY_STRING);
}
s = fh->directory;
}
else {
s = hle->directory;
}
For a dynamically registered filter, fname is "mod_python" and the context
provided with the filter handler is used to get details of dynamically
registered filter. This information isn't available or used by
select_interp_name() which assumes that filter is part of globally registered
filters. It will not find the filter and so "fh" is NULL and accessing
directory attribute causes a crash.
> PythonHandler in <Files> directive sets req.hlist.directory to useless value.
> -----------------------------------------------------------------------------
>
> Key: MODPYTHON-126
> URL: http://issues.apache.org/jira/browse/MODPYTHON-126
> Project: mod_python
> Type: Bug
> Components: core
> Versions: 3.2.7
> Reporter: Graham Dumpleton
> Assignee: Graham Dumpleton
> Fix For: 3.3
>
> When you have Apache ".htaccess" configuration like:
> SetHandler mod_python
> #PythonPath "['/Users/grahamd/Sites/auth']+sys.path"
> <Files "page1.txt">
> PythonHandler page1::handler_txt
> </Files>
> <Files "page2.txt">
> PythonHandler page2::handler_txt
> </Files>
> and "page1.txt" is accessed, the req.hlist.directory attribute, which is
> supposed to list the name of the directory the PythonHandler directive was
> used in, gets set to "page1.txt/" instead.
> This value then gets added into "sys.path". Because it doesn't actually
> identify the directory, the module "page1" cannot actually be found when the
> import is performed.
> [Fri Feb 10 09:08:40 2006] [error] [client 127.0.0.1] PythonHandler
> page1::handler_txt: Traceback (most recent call last):
> [Fri Feb 10 09:08:40 2006] [error] [client 127.0.0.1] PythonHandler
> page1::handler_txt: File
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages/mod_python/apache.py",
> line 288, in HandlerDispatch\n log=debug)
> [Fri Feb 10 09:08:40 2006] [error] [client 127.0.0.1] PythonHandler
> page1::handler_txt: File
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages/mod_python/apache.py",
> line 508, in import_module\n f, p, d = imp.find_module(parts[i], path)
> [Fri Feb 10 09:08:40 2006] [error] [client 127.0.0.1] PythonHandler
> page1::handler_txt: ImportError: No module named page1
> The only workaround at this point is to explicitly define the PythonPath
> directive to include the directory the modules and ".htaccess" file are in.
> Not sure yet whether there is a way in Apache of determining the directory
> the "Files" directive is used in and set "req.hlist.directory" correctly.
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