Site login using cURL(libcurl)

[buzz2050]

Hi all,

I am using cURL for the first time. I need to login to a site and my cURL code to do the same is as follows:

//curlScript.php

<?php
function getContent($url, $referer, $cookie_file_name, $post_fields='')
{
 
    //Setting cookie path    
        if (substr(PHP_OS, 0, 3) == 'WIN')
        {
            if($cookie_file_name != "")
            {
                $cookie_file_path = str_replace('\\','/', getcwd().'/'.$cookie_file_name);
            }
            else
            {
                $cookie_file_path = str_replace('\\','/', getcwd().'/cookies.txt');
            }
        }
        else
        {
            if($cookie_file_name != "")
            {
                $cookie_file_path = tempnam("/tmp", $cookie_file_name);             
            }
            else
            {
                $cookie_file_path = tempnam("/tmp", "cookies");             
            }        
        }
 
    //Creating the cookie file if it doesn't exist
        $fp = fopen($cookie_file_path, "w");
        fclose($fp);    
 
    //Spoofing user-agent
        $agent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20";
 
    //Initializing cURL session and setting appropriate options    
        $ch = curl_init($url); 
 
        curl_setopt($ch, CURLOPT_USERAGENT, $agent);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); 
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file_path);
        curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path);
 
        if($post_fields != '')
        {
            curl_setopt($ch, CURLOPT_POST, 1); 
            curl_setopt($ch, CURLOPT_POSTFIELDS,$post_fields); 
        }
 
        if($referer != '')
        {
            curl_setopt($ch, CURLOPT_REFERER, $referer);
        }
 
    //Executing cURL session and getting the o/p string
        $result = curl_exec ($ch);
 
    //Close the cURL session
        curl_close ($ch);
 
    //Return content fetched by the cURL session
        return $result ;
 
}//getContent()
?>
 

I have xampp installed on my localhost and right now I am executing the script there.

I did manage to login to my account, however, when I click on any of the links in the fetched content, it tries to redirect to some resource on my localhost and consequently gives the 404-object not found error.

Looking at the grabbed content I realized that all the links there have relative paths, hence 'http://localhost' gets prepended automatically.

Is replacing all relative paths with absolute paths the only way to make the links work? But in any case, my browser address bar still shows http://localhost/curlScript.php, so do I need to redirect to the appropriate
page after logging in.. I mean how would that work.. am I missing something?

I am a little confused, any help highly appreciated!!!

Thanks!

[Markus]

Of course you'll have to change the links on your fetched content. Otherwise, the links will attempt to point to a location on your local server. You can use a regular expression to filter through the content and preg_replace() to change the links.

http://uk3.php.net/preg_replace

http://www.regular-expressions.info/php.html

[buzz2050]

Hey Markus,

I thought so..
Well, will try using regular expressions to match and replace links and see what happens..

Thanks for replying.

[Markus]

@buzz2050
No problem.

Greetings,
Markus.