| Re: How to cURL a JSP page [message #179432 is a reply to message #179431] |
Sun, 28 October 2012 12:23   |
Ankur Sinha
Messages: 2
Registered: October 2012
Karma:
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Junior Member |
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On Sunday, 28 October 2012 14:13:48 UTC+5:30, J.O. Aho wrote:
> On 28/10/12 04:12, Ankur Sinha wrote:
>
>> I am trying to cURL my university login page. I want users to enter their university id and pass in my website,
>
>> my website will curl to university website, authenticate and then allow them to login or give error accordingly.
>
>
>
> There are quite many people who won't do that, login in to a site from a
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> third party page, as this can cause login credentials be stolen.
>
>
>
>
>
>> But my university portal is a jsp page.
>
>
>
> This don't make any difference how curl works.
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>
>
>> And after having posted in StackOverflow and other forums before, this
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>> is what I came up with. I need further help on where I am going wrong and how to rectify it.
>
>>
>
>> [/color]
[color=blue]> [/color]
[color=teal]>> <form class="form-horizontal" action="curl.php" method="POST">[/color]
[color=blue]> [/color]
[color=teal]>> <div class="control-group">[/color]
[color=blue]> [/color]
[color=teal]>> <label class="control-label" for="inputEmail">Username</label>[/color]
[color=blue]> [/color]
[color=teal]>> <div class="controls">[/color]
[color=blue]> [/color]
[color=teal]>> <input type="text" id="inputEmail" placeholder="Username">[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> You will not send any useful data to your curl page, see examples at [/color]
[color=blue]> [/color]
[color=blue]> w3schools: http://www.w3schools.com/html/html_forms.asp[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=teal]>> </div>[/color]
[color=blue]> [/color]
[color=teal]>> </div>[/color]
[color=blue]> [/color]
[color=teal]>> <div class="control-group">[/color]
[color=blue]> [/color]
[color=teal]>> <label class="control-label" for="inputPassword">Password</label>[/color]
[color=blue]> [/color]
[color=teal]>> <div class="controls">[/color]
[color=blue]> [/color]
[color=teal]>> <input type="password" id="inputPassword" placeholder="Password">[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> You will not send any useful data to your curl page, see examples at [/color]
[color=blue]> [/color]
[color=blue]> w3schools: http://www.w3schools.com/html/html_forms.asp[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=teal]>> </div>[/color]
[color=blue]> [/color]
[color=teal]>> </div>[/color]
[color=blue]> [/color]
[color=teal]>> <div class="control-group">[/color]
[color=blue]> [/color]
[color=teal]>> <div class="controls">[/color]
[color=blue]> [/color]
[color=teal]>> <label class="checkbox">[/color]
[color=blue]> [/color]
[color=teal]>> <input type="checkbox"> Remember me[/color]
[color=blue]> [/color]
[color=teal]>> </label>[/color]
[color=blue]> [/color]
[color=teal]>> <button type="submit" class="btn">Sign in</button>[/color]
[color=blue]> [/color]
[color=teal]>> </div>[/color]
[color=blue]> [/color]
[color=teal]>> </div>[/color]
[color=blue]> [/color]
[color=teal]>> </form>[/color]
[color=blue]> [/color]
[color=teal]>>
>
>>
>
>> Now this is my curl.php file:
>
>>
>
>> [/color]
[color=blue]> [/color]
[color=teal]>> <?php[/color]
[color=blue]> [/color]
[color=teal]>> $address = "http://evarsity.srmuniv.ac.in/srmswi/usermanager/youLogin.jsp"; //site URL[/color]
[color=blue]> [/color]
[color=teal]>> $post = "username=txtRegNumber&pass=txtPwd"; //Parameters to be sent. Written like GET.[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> You need to set the login name and password, in this case you just using [/color]
[color=blue]> [/color]
[color=blue]> static values txtRegNumber / txtPwd, you need to assign those dynamically.[/color]
[color=blue]> [/color]
[color=blue]> See http://www.php.net/manual/en/language.variables.basics.php[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=teal]>> $welcomeMessage = "Welcome..."; //This is the message that is displayed when a login is successful[/color]
[color=blue]> [/color]
[color=teal]>> [/color]
[color=blue]> [/color]
[color=teal]>> $options = array([/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_USERAGENT => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)',[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_POST => true, //using post[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_URL => $address, //where to go[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_POSTFIELDS => $post, //input params[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_RETURNTRANSFER => true, //Returns a string value of the request[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_SSL_VERIFYPEER => false, //Avoid SSL problems[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_COOKIEFILE => 'cookie.txt', //Save cookies[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_COOKIEJAR => 'cookies.txt' //Cookies located[/color]
[color=blue]> [/color]
[color=teal]>> CURLOPT_USERPWD ==> [username]:[password]);[/color]
[color=blue]> [/color]
[color=teal]>> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> You need to make the connection to the site, see example at php.net:[/color]
[color=blue]> [/color]
[color=blue]> http://www.php.net/manual/en/function.curl-init.php[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=teal]>> if (strpos($content, $welcomeMessage) !== false){[/color]
[color=blue]> [/color]
[color=teal]>> /*[/color]
[color=blue]> [/color]
[color=teal]>> Do whatever,I don't know what to do here though[/color]
[color=blue]> [/color]
[color=teal]>> */[/color]
[color=blue]> [/color]
[color=teal]>> }[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> You should make error checks, see examples at php.net:[/color]
[color=blue]> [/color]
[color=blue]> http://www.php.net/manual/en/function.curl-errno.php[/color]
[color=blue]> [/color]
[color=blue]> http://www.php.net/manual/en/function.curl-error.php[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> When you confirm that you have logged in, you have to be sure that the [/color]
[color=blue]> [/color]
[color=blue]> string you look for don't include HTML tags.[/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=blue]> [/color]
[color=teal]>> curl_close($ch); //close connections[/color]
[color=blue]> [/color]
[color=teal]>> ?>[/color]
[color=blue]> [/color]
[color=teal]>>
>
>>
>
>> Please let me know where I am going wrong, why I am not able to login and after logging in, how to log out.
>
>
>
> Drop the cookie, if you want the university web server to know it, make
>
> a curl request to the logout link/page.
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>
>
>
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> Good luck with your school assignment.
>
>
>
> --
>
>
>
> //Aho
I am making this for my college out of my own interest after conducting a survey. So this is not my assignment and people said they won't sign up freshly and they wanted to login using existing ids and passwords provided by the university.
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