Trying to validate if Facebook user exist or not from a .txt file with cURL

[WinterSummer]

I have a .txt files that contains a few facebook usernames and I want to check if those usernames exists, i.e if Facebook returns a real profile or if it returns a 404 page. I want to save all usernames that exists in a .txt file.

 

   

function get_data($url) {

$ch = curl_init();

$timeout = 100;



curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);



$data = curl_exec($ch);



if (curl_errno($ch)) {

  echo 'Curl error: ' . curl_error($ch);

}



curl_close($ch);



return $data;

}



$handle = fopen("usernames.txt", "r");



if ($handle) {

    while ($username = fgets($handle) !== false) {

       echo $url = "https://facebook.com/" . $username;



       $source = get_data($url);

       if (preg_match_all('/<div class="coverBorder">/', $source, $matches))  // If user exists, print its name ($line). <div class="coverBorder"> confirms that the user exists since this class does not exist on Facebook's 404 page

        echo $matches;

       }



       fclose($handle);



} else {

    echo "Error opening file";

} 

 

I get those errors:

 

    https://facebook.com/sanna Curl error: Illegal characters found in URLhttps://facebook.com/asodkasopdkaopsasf Curl error: Illegal characters found in URLhttps://facebook.com/jana Curl error: Illegal characters found in URLhttps://facebook.com/henrik

  

  

usernames.txt looks like:  

 

sanna  

asodkasopdkaopsasf  

jana  

henrik   

[Ch0cu3r]

You are getting that error due the cartridge return and or newline whitespace characters (\r\n or \n or \r) being included when you read the username from each line in the text file. When you get the username you need to use trim

Edited August 16, 2015 by Ch0cu3r

[WinterSummer]

This worked very good, I love you!

 

Now I want to save all usernames that exists in a .txt file that gets downloaded to my computer when I visit the website. How do I achieve that?

if ($handle) {
    while ($username = fgets($handle) !== false) {
       $url = "https://facebook.com/" . trim($username);


       $source = get_data($url);
       if (preg_match_all('/<div class="coverBorder">/', $source, $matches))  // If user exists, print its name ($line). <div class="coverBorder"> confirms that the user exists since this class does not exist on Facebook's 404 page
        //Save $username in an array then export it to a .txt file?
       }


       fclose($handle);


} else {
    echo "Error opening file";
}

[WinterSummer]

You are getting that error due the cartridge return and or newline whitespace characters (\r\n or \n or \r) being included when you read the username from each line in the text file. When you get the username you need to use trim

 

I can't edit my last post but I wanted to quote you so you get notified that I would be happy if you could help me with the last bit.

[WinterSummer]

I have been working on the code and it currently looks like this:

<?php

		
function get_data($url) {

	$ch = curl_init();
	$timeout = 30;
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
	curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');
	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

	$data = curl_exec($ch);

	if(curl_errno($ch)) {
  		echo 'Curl error: ' . curl_error($ch);
	}
		
	curl_close($ch);
	return $data;
}

	$valid_username = array(); 

	$handle = fopen("usernames.txt", "r");

	if ($handle) {
    	while (($username = fgets($handle)) !== false) {
	       
	        $url = "facebook.com/" . trim($username);
	        $source = get_data($url);
	        echo $url . "<br />";
	        
	       	if(preg_match_all('/<div class="coverBorder">/', $source, $matches)) { // If user exists, print its name. <div class="coverBorder"> confirms that the user exists since this class does not exist on Facebook's 404 page
	        	echo "<font color='green'>" . $username . "</font>";
	        	array_push($valid_username, $username);
	        }


        	else
        		echo "<font color='red'>" . $username . "</font><br />";

        	echo "<hr />";
        
    }


    fclose($handle);
	
	} else {
    	echo "Error opening file";
	} 



?>

What I don't understand is that it's reporting false on some of the usernames even if though they do exist:

 

lisa and johanna should be green, not red!

 

Edited August 17, 2015 by WinterSummer

[WinterSummer]

I'm still stuck on this, can't figure out why lisa and johanna are reported as false... Would be very happy if someone could give me a hand.