PythonInputFilter doesn't appear to work for chunked request content.
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Key: MODPYTHON-255
URL: https://issues.apache.org/jira/browse/MODPYTHON-255
Project: mod_python
Issue Type: Bug
Components: core
Affects Versions: 3.3.1
Reporter: Graham Dumpleton
If PythonInputFilter is used to create an input filter, but content handler
isn't actually mod_python but another module which can handle chunked request
content, and a request is sent with chunked request content, then things just
don't seem to work as one would expect.
For example, if use:
$ curl -d "abcdefghijklmnopqrstuvwxyz"
http://home.dscpl.com.au/~grahamd/echo.wsgi --header "Transfer-Encoding:
chunked"
Where the .wsgi script is for mod_wsgi and is:
import StringIO
def application(environ, start_response):
headers = []
headers.append(('Content-type', 'text/plain'))
start_response('200 OK', headers)
input = environ['wsgi.input']
output = StringIO.StringIO()
keys = environ.keys()
keys.sort()
for key in keys:
print >> output, '%s: %s' % (key, repr(environ[key]))
print >> output
length = int(environ.get('CONTENT_LENGTH', '0'))
#output.write(input.read(length))
output.write(input.read())
return [output.getvalue()]
and the input filter itself is:
from mod_python import apache
def inputfilter(filter):
filter.req.log_error("inputfilter")
filter.req.log_error("inputfilter read()")
s = filter.read()
filter.req.log_error("inputfilter : %s" % repr(s))
while s:
filter.req.log_error("inputfilter write()")
filter.write(s)
filter.req.log_error("inputfilter read()")
s = filter.read()
filter.req.log_error("inputfilter : %s" % repr(s))
if s is None:
filter.req.log_error("inputfilter close()")
filter.close()
filter.req.log_error("inputfilter exit()")
The curl just hangs and logged output is:
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter read()
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter :
'abcdefghijklmnopqrstuvwxyz'
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter write()
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter read()
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter read()
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter : '\\r\\n'
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter write()
[Mon Jun 08 14:10:37 2009] [error] [client 192.168.1.5] inputfilter read()
First off, a '\r\n' is coming from somewhere when it should and then it just
blocks on read().
Whatever sentinel is used in input stream to indicate end of chunked request
content, it isn't being recognised by mod_python.
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