#!/usr/bin/env python
from wsgiref.simple_server import make_server
from cgi import parse_qs, escape
html = """
Age: %(age)s
Hobbies: %(hobbies)s
"""
def application(environ, start_response):
# the environment variable CONTENT_LENGTH may be empty or missing
try:
request_body_size = int(environ.get('CONTENT_LENGTH', 0))
except (ValueError):
request_body_size = 0
# When the method is POST the variable will be sent
# in the HTTP request body which is passed by the WSGI server
# in the file like wsgi.input environment variable.
request_body = environ['wsgi.input'].read(request_body_size)
d = parse_qs(request_body)
age = d.get('age', [''])[0] # Returns the first age value.
hobbies = d.get('hobbies', []) # Returns a list of hobbies.
# Always escape user input to avoid script injection
age = escape(age)
hobbies = [escape(hobby) for hobby in hobbies]
response_body = html % { # Fill the above html template in
'checked-software': ('', 'checked')['software' in hobbies],
'checked-tunning': ('', 'checked')['tunning' in hobbies],
'age': age or 'Empty',
'hobbies': ', '.join(hobbies or ['No Hobbies?'])
}
status = '200 OK'
response_headers = [
('Content-Type', 'text/html'),
('Content-Length', str(len(response_body)))
]
start_response(status, response_headers)
return [response_body]
httpd = make_server('localhost', 8051, application)
httpd.serve_forever()