import codecs
import requests
import bs4

def html_get(html):
    req = requests.get(html)
    return req.text

names = []
values = []
head = {"Host":"syn-ch.org",
        "User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0",
        "Accept":"*/*",
        "Accept-Language":"ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3",
        "Accept-Encoding":"gzip, deflate",
        "X-Requested-With":"XMLHttpRequest",
        "Referer":"http://syn-ch.org/test/res/3286.html",
        "Content-Length":"2913",
        "Content-Type":"multipart/form-data; boundary=---------------------------14589251627514",
        "Connection":"keep-alive"}
url = "http://syn-ch.org/test/res/3286.html"

decoder = codecs.getincrementaldecoder("zlib")("strict")

hh = bs4.BeautifulSoup(html_get(url),"html.parser").find(enctype="multipart/form-data")

for x in hh.find_all("input"):
    names.append(x.attrs.get("name"))
    values.append(x.attrs.get("value"))
upd = {"user_flag":"","json_response":"1","body":"ttt"}
dd = dict(zip(names,values))
dd.update(upd)
#dd.pop
#print(dd)

r = requests.post(url,data=dd,headers=head)
print(r.status_code)