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Using curl to login to https site


bayswater
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Hi, I am trying to make a registration form for users. The registration is for a seminar introducing a particular system for them. This (web based) system is merely a remote website. But in order for the users to actually use the system at the seminar, they HAVE to have logged in on the system in advance/prior to the seminar at least once. So in my registration form I want to include a curl login of the system, which should be invisible to the users. Hence I don't want to open a popup loading the system/remote site - I would like for this to happen without the users knowing it. So they enter username and password, Curl then does the login and then returns either "Succes! You were logge in!" or  "There was an error. You were not logged in!".

 

I have no use for additional information from the remote site - the only thing is that they should login this once - that's it. My code is below - and it works if the remote site is NOT using https (that is http ;-)) but if the remote site IS running https I get no message back.

 

The line "if (stristr($result, "loginerrors"))" is set because the remote site includes the keyword "loginerrors" if you weren't logged in properly.

 

Any suggestions?

 

 

<?php
$post_data['username'] = 'something@domain.com';
$post_data['password'] = 'MyPassword';

//traverse array and prepare data for posting (key1=value1)
foreach ( $post_data as $key => $value) {
$post_items[] = $key . '=' . $value;
}

//create the final string to be posted using implode()
$post_string = implode ('&', $post_items);

//create cURL connection
$curl_connection = curl_init('https://www.domain.com/login.php');

//set options
curl_setopt($curl_connection, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($curl_connection, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
curl_setopt($curl_connection, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl_connection, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl_connection, CURLOPT_SSL_VERIFYPEER, false);

//set data to be posted
curl_setopt($curl_connection, CURLOPT_POSTFIELDS, $post_string);

//perform our request
$result = curl_exec($curl_connection);

if (stristr($result, "loginerrors"))
{
echo "There was an error. You were not logged in!";
}else{
echo "Succes! You were logge in!";
}

//close the connection
curl_close($curl_connection);
?>

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