How to login a site using java

> Hi

> I need to login a site programatically using java..

> how to to login..

>

> thanks

What site?

prometheuzza at 2007-7-28 22:03:08 >

> Hi

> i need to login amazon.uk site programatically

> using java... Can u help me

>

> thanks

With what purpose?

prometheuzza at 2007-7-28 22:03:08 >

With a site like Amazon's, I don't think you will able to do this (don't get me wrong, I don't know to either!).

Perhaps you have no illegal things in mind, but if this was (easily) possible, such a feature could be exploited by people with evil intent.

prometheuzza at 2007-7-28 22:03:08 >

> Hi

> hey come on yaar , this is not an illegal act. iam

> an user of amazon site.i have

> he username and passowrd to access . So as per our

> project requirement i must login to the amazon site

> with my user name and password.You think iam a seller

> using amazon..

>

> thanks

Like I said: perhaps YOU have nothing illegal in mind, but if it was easily possible, this could be exploited by people other than YOU that do have illegal things in mind.

prometheuzza at 2007-7-28 22:03:08 >

> HI

> So as per your discussion its not programmatic ally

>possible?. So is there any option to login site.

> thanks

No, you're not reading what I post. I said it can probably not be done easily, which is not the same as: it cannot be done.

I can imagine that the people who designed that site did their best to prevent it.

prometheuzza at 2007-7-28 22:03:08 >

You will need to construct HTTP requests and send them to Amazon's web site. You pass the username and password by setting the Authorization header field within the request and this usually has to be BASE64 encoded.

There is a whole series of events that have to occur for HTTP authentication to work. It is a little involved but not overly complicated. The RFC is outlined here http://www.ietf.org/rfc/rfc2617.txt

Google for 'http authentication' and you will find a lot more.

markwagonera at 2007-7-28 22:03:08 >

> You will need to construct HTTP requests and send

> them to Amazon's web site. You pass the username and

> password by setting the Authorization header field

> within the request and this usually has to be BASE64

> encoded.

While this is an accurate description of "HTTP authentication", it is not the way that most sites nowadays use to authenticate their users.

Usually something called "form-based authentication" is used (for various reasons, mostly because it can be made to look better ;-))

JoachimSauera at 2007-7-28 22:03:08 >

Amazon have a large number of web services you can use. Not sure if any will provide you with the information you require but it might be worth a look

http://www.amazon.com/gp/browse.html?node=3435361

JonlWrighta at 2007-7-28 22:03:15 >

> Hi

> i tried to login using http authentication . it

> worked but not 100%. after entering the url , user

> name and password . iam reading the url content.

> through a buffer reader . but the output read was

> the same old login page but not the page after

> login.... any help ..

As I was trying to tell you

1) using http auth with user&passw is not enough. You'll have to reproduce exactly the actual http request sent by site users when they log in.

2) Even if you do 1) successfully, your program will become dependent on the Amazon login process. If the later changes in time, your program will break.

As someone suggested, have a look at their Web services. maybe there is something there you could use.

karma-9a at 2007-7-28 22:03:15 >

I'm going to say no.

The link I provided also comes with plenty of documentation and guides on how to use the services provided.

Its your project so why not have a go at completing it.

JonlWrighta at 2007-7-28 22:03:15 >

Hi

Can anybody help me please....

thanks

mnrnjn_ranjana at 2007-7-28 22:03:15 >