How do I get POST form variables using wsgi? Please help
Wyatt Biker
Platform: Windows Vista/Apache/2.2.9 (Win32) mod_wsgi/2.0 Python/2.5.2
I can single step and debug the code (using ActiveState IDE), but, I cannot see or get my form variables "name" and "submit" values.
Is there some special function or is my config wron? Where do i see full examples?
Thanks.
Here is my Apache config file.
---------------------------------------------
LoadModule wsgi_module modules/mod_wsgi.so
Alias /mymed c:/med/
<Directory c:/med/>
Options ExecCGI Indexes
AddHandler wsgi-script .py
Order allow,deny
Allow from all
</Directory>
Here is hello.html
--------------------------
<html>
<body>
<form action="hello.py" target="top" method="POST">
Name : <input id="name" type="text" value="John Doe">
Submit: <input id="submit" type="submit" value="submit">
</form>
</body>
</html>
Here is my hello.py
--------------------------------------
import sys
sys.path.append("C:\\Program Files\\ActiveState Komodo IDE 4\\lib\\support\\dbgp\\pythonlib")
from dbgp import client
import os
def application(environ, start_response):
client.brk(host="localhost", port=9000)
# at this point param environ has no objects or field information from the form.
# How do I get it?
status = '200 OK'
output = 'Hello World!' + 'abc'
response_headers = [('Content-type', 'text/plain'),
('Content-Length', str(len(output)))]
start_response(status, response_headers)
return [output]
Graham Dumpleton
trying to do it from scratch yourself.
A nice nuts and bolts approach is:
FWIW, for a POST request you have to read request content and parse
out form arguments. Toolkits like above do this for you and why you
probably want to use one of them.
Graham
2008/6/25 Wyatt Biker <wyatt...@gmail.com>:
Clodoaldo
> I looked everywhere for examples how to get form fields from a web page. I
> couldnt find a good example.
They are in the response body. To retrieve them you use the file like
object in environ['wsgi.input']:
# app.wsgi
from urllib import unquote_plus
def application(environ, start_response):
body = environ['wsgi.input'].read(int(environ['CONTENT_LENGTH']))
parameter_pairs = body.split('&')
parameter = dict()
for parameter_pair in parameter_pairs:
parameter_pair = parameter_pair.split('=')
parameter[unquote_plus(parameter_pair[0])] = \
unquote_plus(parameter_pair[1])
output = repr(parameter)
status = '200 OK'
response_headers = [('Content-type', 'text/plain'),
('Content-Length', str(len(output)))]
start_response(status, response_headers)
return [output]
In addition to the id parameter in the input tags you must also use a
name parameter:
Name : <input id="name" name="name" type="text" value="John Doe">
Obviously it would be much easier to use modules or middeware provided
by a framework or something else not that heavy.
Regards, Clodoaldo
Robert Corsaro
{{{
from paste import request
def application(environ, start_response):
if (environ['REQUEST_METHOD'] == 'POST):
fields = request.parse_formvars(environ)
field1 = fields.get('field1', 'default)
}}}
paste has more then a few convenience methods.
fulj...@gmail.com
On Wednesday, June 25, 2008 5:57:51 PM UTC+2, Robert Corsaro wrote:
You can also use paste:
{{{
from paste import request
def application(environ, start_response):
if (environ['REQUEST_METHOD'] == 'POST):
fields = request.parse_formvars(environ)
field1 = fields.get('field1', 'default)
}}}
paste has more then a few convenience methods.
Beautiful answer! Update 2013:
from webob import Request
def application(environ, start_response):
if (environ['REQUEST_METHOD'] == 'POST):
field1 = req.params.get('field1', 'default')
webob can be installed in Ubuntu with:
sudo apt-get install python-webob
read more about webob at:
https://en.wikipedia.org/wiki/Python_Paste
http://webob.org/
http://docs.repoze.org/moonshining/tools/webob.html