Python envoie POST avec en-tête

Question

J'essaie de construire un script python qui envoie un POST avec des paramètres pour extraire le résultat. Avec fiddler, j'ai extrait la requête post qui retourne ce que je veux. Le site web utilise uniquement https.

POST /Services/GetFromDataBaseVersionned HTTP/1.1
Host: www.mywbsite.fr
"Connection": "keep-alive",
"Content-Length": 129,
"Origin": "https://www.mywbsite.fr",
"X-Requested-With": "XMLHttpRequest",
"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5",
"Content-Type": "application/json",
"Accept": "*/*",
"Referer": "https://www.mywbsite.fr/data/mult.aspx",
"Accept-Encoding": "gzip,deflate,sdch",
"Accept-Language": "fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4",
"Accept-Charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.3",
"Cookie": "ASP.NET_SessionId=j1r1b2a2v2w245; GSFV=FirstVisit=; GSRef=https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CHgQFjAA&url=https://www.mywbsite.fr/&ei=FZq_T4abNcak0QWZ0vnWCg&usg=AFQjCNHq90dwj5RiEfr1Pw; HelpRotatorCookie=HelpLayerWasSeen=0; NSC_GSPOUGS!TTM=ffffffff09f4f58455e445a4a423660; GS=Site=frfr; __utma=1.219229010.1337956889.1337956889.1337958824.2; __utmb=1.1.10.1337958824; __utmc=1; __utmz=1.1337956889.1.1.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided)"

{"isLeftColumn":false,"lID":-1,"userIpCountryCode":"FR","version":null,"languageCode":"fr","siteCode":"frfr","Quotation":"eu"}

Et maintenant mon python script :

#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
import string
import httplib
import urllib2

host = "www.mywbsite.fr/sport/multiplex.aspx"
    params='"isLeftColumn":"false","liveID":"-1","userIpCountryCode":"FR","version":"null","languageCode":"fr","siteCode":"frfr","Quotation":"eu"'

headers = { Host: www.mywbsite.fr,
"Connection": "keep-alive",
"Content-Length": 129,
"Origin": "https://www.mywbsite.fr",
"X-Requested-With": "XMLHttpRequest",
"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5",
"Content-Type": "application/json",
"Accept": "*/*",
"Referer": "https://www.mywbsite.fr/data/mult.aspx",
"Accept-Encoding": "gzip,deflate,sdch",
"Accept-Language": "fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4",
"Accept-Charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.3",
"Cookie": "ASP.NET_SessionId=j1r1b2a2v2w245; GSFV=FirstVisit=;     GSRef=https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CHgQFjAA&url=https://www.mywbsite.fr/&ei=FZq_T4abNcak0QWZ0vnWCg&usg=AFQjCNHq90dwj5RiEfr1Pw; HelpRotatorCookie=HelpLayerWasSeen=0; NSC_GSPOUGS!TTM=ffffffff09f4f58455e445a4a423660; GS=Site=frfr; __utma=1.219229010.1337956889.1337956889.1337958824.2; __utmb=1.1.10.1337958824; __utmc=1; __utmz=1.1337956889.1.1.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided)"

}

url = "/Services/GetFromDataBaseVersionned"

# POST the request
conn = httplib.HTTPConnection(host,port=443)
conn.request("POST",url,params,headers)
response = conn.getresponse()

data = response.read()
print data

Mais lorsque je lance mon script, j'ai cette erreur :

socket.gaierror: [Errno -2] Name or service not known

Answer 1

Merci beaucoup pour votre lien vers le module de demande. C'est tout simplement parfait. Ci-dessous la solution à mon problème.

import requests
import json

url = 'https://www.mywbsite.fr/Services/GetFromDataBaseVersionned'
payload = {
    "Host": "www.mywbsite.fr",
    "Connection": "keep-alive",
    "Content-Length": 129,
    "Origin": "https://www.mywbsite.fr",
    "X-Requested-With": "XMLHttpRequest",
    "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5",
    "Content-Type": "application/json",
    "Accept": "*/*",
    "Referer": "https://www.mywbsite.fr/data/mult.aspx",
    "Accept-Encoding": "gzip,deflate,sdch",
    "Accept-Language": "fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4",
    "Accept-Charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.3",
    "Cookie": "ASP.NET_SessionId=j1r1b2a2v2w245; GSFV=FirstVisit=; GSRef=https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CHgQFjAA&url=https://www.mywbsite.fr/&ei=FZq_T4abNcak0QWZ0vnWCg&usg=AFQjCNHq90dwj5RiEfr1Pw; HelpRotatorCookie=HelpLayerWasSeen=0; NSC_GSPOUGS!TTM=ffffffff09f4f58455e445a4a423660; GS=Site=frfr; __utma=1.219229010.1337956889.1337956889.1337958824.2; __utmb=1.1.10.1337958824; __utmc=1; __utmz=1.1337956889.1.1.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided)"
}
# Adding empty header as parameters are being sent in payload
headers = {}
r = requests.post(url, data=json.dumps(payload), headers=headers)
print(r.content)

Answer 2

Si nous voulons ajouter en-têtes HTTP personnalisés à un Demande POST nous devons les faire passer par un dictionnaire pour le headers paramètre .

Voici un exemple avec une valeur non vide corps y en-têtes :

import requests
import json

url = 'https://somedomain.com'
body = {'name': 'Maryja'}
headers = {'content-type': 'application/json'}

r = requests.post(url, data=json.dumps(body), headers=headers)

Fuente

Answer 3

Pour faire une demande POST au lieu d'une demande GET en utilisant urllib2 vous devez spécifier des données vides, par exemple :

import urllib2
req = urllib2.Request("http://am.domain.com:8080/openam/json/realms/root/authenticate?authIndexType=Module&authIndexValue=LDAP")
req.add_header('X-OpenAM-Username', 'demo')
req.add_data('')
r = urllib2.urlopen(req)