Where can i find the header information in a webservice callout request?

we are integrating Salesforce and SAP systems. For that we are making a callout to SAP with username and password in the header. When i checked the debug log the callout_request entry contains an xml request. But i did not find the header information which is the username and password in that request XML. Where can i find it? How could i ensure that i am sending the headers correctly? Experts please suggest. Thanks

User Login Authentication using forms and Django

I am trying to set up the user authentication for the login page using forms and comparing it to database values and my code works but then I realized I was getting login successful if I put any password if it was available in the database. What I want to do is to search for the mail and get the password for that user only not the whole database. My database will contain no duplicate emails so I don’t have to worry about that. I have spend too much time trying to figure out how to get the password for same user the email is.