def handle_redirect(response, host, pagename, cookie=""):
"""Gere les redirections du type 302 Redirect ou 302 Moved temporarily
Utile si l'utilisateur entre une url du type http://www.monsite.fr. Ici seul le host est renseigne.
Suivant la configuration du serveur web, le client peut recevoir un message de redirection
Arguments : - objet httplib.HTTPResponse : reponse susceptible d'etre une redirection
- string host : site web
- string pagename : nom de la page
- string cookie : cookie d'authentification
Return : - objet httlib.HTTPResponse : reponse une fois les redirections effectuees
"""
while response.status == 302:
host_pagename = {}
headers = response.getheaders()
#l'adresse de la redirection se trouve dans le champ location du header HTTP
new_location = [location for name, location in headers if name == "location"][0]
intern_or_relative = which_kind_of_link(host, new_location)
if intern_or_relative == 0 or intern_or_relative == 1:
host_pagename = handle_html.url_to_host_pagename(new_location)
elif intern_or_relative == 2:
host_pagename["host"] = host
host_pagename["pagename"] = new_location
elif intern_or_relative == 3:
host_pagename["host"] = host
host_pagename["pagename"] = handle_html.get_absolute_path(pagename)+new_location
else:
break
response = send_request(host_pagename["host"], host_pagename["pagename"], cookie)
return response
def main_http():
"""Fonction servant a tester le module HTTP_request
Le code HTML de la page demandee est imprime sur la sortie standard
"""
if len(sys.argv) == 2 or len(sys.argv) == 3:
host_pagename = {}
host_pagename = handle_html.url_to_host_pagename(sys.argv[1])
#Sans cookie d'authentification
if len(sys.argv) == 2:
response_html = get_html_response(host_pagename["host"], host_pagename["pagename"])
print response_html
#Avec cookie d'authentification
else:
response_html = get_html_response(host_pagename["host"], host_pagename["pagename"], sys.argv[2])
#print response_html
tree = handle_html.build_tree(response_html)
handle_html.print_tree(tree)
else:
print "== [Utilisation] ./HTTP_request.py URL [Cookie] =="