How to save POST&GET headers of a web page with "Wireshark"?
- by brilliant
Hello everybody,
I've been trying to find a python code that would log in to my mail box on yahoo.com from "Google App Engine". I was given this code:
import urllib, urllib2, cookielib
url = "https://login.yahoo.com/config/login?"
form_data = {'login' : 'my-login-here', 'passwd' : 'my-password-here'}
jar = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
form_data = urllib.urlencode(form_data)
# data returned from this pages contains redirection
resp = opener.open(url, form_data)
# yahoo redirects to http://my.yahoo.com, so lets go there instead
resp = opener.open('http://mail.yahoo.com')
print resp.read()
The author of this script looked into HTML script of yahoo log-in form
and came up with this script.
That log-in form contains two fields, one for users' Yahoo! ID and another one is for users' password.
However, when I tried this code out (substituting mu real Yahoo login for 'my-login-here' and my real password for 'my-password-here'), it just return the log-in form back to me, which means that something didn't work right.
Another supporter suggested that I should send an MD5 hash of my password, rather than a plain password.
He also noted that in that log-in form there are a lot other hidden fields besides login and password fields (he called them "CSRF protections") that I would also have to deal with:
<input type="hidden" name=".tries" value="1">
<input type="hidden" name=".src" value="ym">
<input type="hidden" name=".md5" value="">
<input type="hidden" name=".hash" value="">
<input type="hidden" name=".js" value="">
<input type="hidden" name=".last" value="">
<input type="hidden" name="promo" value="">
<input type="hidden" name=".intl" value="us">
<input type="hidden" name=".bypass" value="">
<input type="hidden" name=".partner" value="">
<input type="hidden" name=".u" value="bd5tdpd5rf2pg">
<input type="hidden" name=".v" value="0">
<input type="hidden" name=".challenge" value="5qUiIPGVFzRZ2BHhvtdGXoehfiOj">
<input type="hidden" name=".yplus" value="">
<input type="hidden" name=".emailCode" value="">
<input type="hidden" name="pkg" value="">
<input type="hidden" name="stepid" value="">
<input type="hidden" name=".ev" value="">
<input type="hidden" name="hasMsgr" value="0">
<input type="hidden" name=".chkP" value="Y">
<input type="hidden" name=".done" value="http://mail.yahoo.com">
He said that I should do the following:
Simulate normal login and save login page that I get;
Save POST&GET headers with "Wireshark";
Compare login page with those headers and see what fields I need to include with my request;
I really don't know how to carry out the first two of these three steps. I have just downloaded "Wireshark" and have tried capturing some packets there. However, I don't know how to "simulate normal login and save the login page". Also, I don't how to save POST$GET headers with "Wireshark". Can anyone, please, guide me through these two steps in "Wireshark"? Or at least tell me what I should start with. Thank You.
