Using cURL to access Facebook-friends without Facebook API - php

Question

I saw these apps on Facebook before that lets you monitor who defriends you. Unfortunately these were removed. Possibly because Facebook doesn't like to show "negative" stuff. So I'm trying to write a PHP-script to fetch all of my friends from Facebook, store them in a database and the next time I run the script and it fetches all of my friends, it will compare them with the ones already stored in the database.
Since I will be using this strictly locally, I don't want to create an application for it on Facebook and therefore I cannot use the Facebook API(since I don't have a key).
So how would I go about to get access to all of my friends?
I managed to use cURL to login to facebook and redirect me to http://www.facebook.com/friends/?everyone&ref=tn. Unfortunately it doesn't list everyone and on top of that, it's selected "Recently Interacted" by default. However, the selection of only friends names works perfectly.
How would I use cURL to:
1) Select "All Friends" from the dropdown list(I think it's done via JS or AJAX so I'm not sure how cURL handles that)
2) Be able to use cURL to somehow scroll through the different pages(all friends are paginated). Changing page is not done via URL(like &page=2, &page=3 and so on), it is either a POST-request or a JS or AJAX.
My current script looks like this:
include_once('simple_html_dom.php');
$user_id = '';
$user_email = "";
$user_pass = "";
$fp = fopen("example.html", "w");
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://login.facebook.com/login.php?&next=http://www.facebook.com/friends/?everyone&ref=tn');
curl_setopt($ch, CURLOPT_POSTFIELDS,'email='.urlencode($user_email).'&pass='.urlencode($user_pass).'&login=Login');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3");
curl_exec($ch);
// So we can view the facebook-page
include('example.html');
$html = file_get_html("example.html");
$count = 0;
$found = 0;
foreach( $html->find('a') as $link )
{
$count++;
if( strpos( $link, 'profile.php?id=' ) && !strpos( $link, $user_id ) && !strpos( $link->innertext, 'img' ) )
{
$found++;
echo 'Link #' . $found . ': ' . $link->innertext;
echo '<br />';
}
}
echo $count . ' links found where ' . $found . ' links matched profile-links';
To test it you need to
1) Download simple_html_dom.php from: http://simplehtmldom.sourceforge.net/
2) Create an empty file, example.html
3) Create an empty file, cookie.txt
4) And of course fill in the user_id, user_email and user_pass at the top with your values

Answer 1

This is against the Facebook terms of service. You shouldn't try to do things that others have had apps deleted for. Please check out the terms of service here for more details.