Commission Junction DeepLink Wrapper

CJDeepLink.php

<?php

// This log on CJ platform, get some info (account number) and construct a link with it.
// Licence: Beerware

class CJDeepLink {
	var $uname;
	var $pw;
	var $pub;
	
	public function __construct($uname, $pw, $pub = ""){ // pub can be from the first request
		$this->uname = $uname;
		$this->pw = $pw;	
		$this->cookieFile = "/tmp/cookieCJDeeplink".rand(99, 999999999);
	}
	
	public function getDeepLink($url){
		$this->connection(); // cookie !! 
		if ($this->pub){
			// tracking request = ;
			$domain = $this->getTrackingDomain();
			if ($domain){
				$webid = $this->getWebsiteId();
				
				return "http://".$domain."/links/".$webid."/type/dlg/".$this->cleanUrl($url);
			}
		}
		return null;
	}
	
	private function cleanUrl($link){
	    if (strpos($link, '?') !== false){ // clean
	        $link = substr($link, 0, strpos($link, '?'));
	    }
	
		if (strpos($link, '#') !== false){ // clean
	        $link = substr($link, 0, strpos($link, '#'));
	    }
	
	    return $link;
	}
	
	private function connection(){
		$url = "https://members.cj.com/member/foundation/memberlogin.json";

		$data = "uname=".urlencode($this->uname)."&pw=".urlencode($this->pw);
				
		$ch = curl_init();

		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
		
		curl_setopt($ch, CURLOPT_COOKIEJAR, $this->cookieFile);
		curl_setopt($ch, CURLOPT_COOKIEFILE, $this->cookieFile);            
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

		$tmp = curl_exec($ch); // execute the curl command
		curl_close($ch);
		
		$decode = json_decode($tmp, true);
		
		if (isset($decode['contact']['company']['id'])){
			$this->pub = $decode['contact']['company']['id'];
		}
	}
	
	private function getTrackingDomain(){
		$url = "https://members.cj.com/member/api/publisher/3592881/trackingDomain?_=".time();
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);		
		curl_setopt($ch, CURLOPT_COOKIEJAR, $this->cookieFile);
		curl_setopt($ch, CURLOPT_COOKIEFILE, $this->cookieFile);
		$tmp = curl_exec($ch); // execute the curl command
		curl_close($ch);
		$decode = json_decode($tmp, true);
		if (isset($decode['trackingDomain'])){
			return $decode['trackingDomain'];
		}
		return false;
	}
	
	private function getWebsiteId(){
		$url = "https://members.cj.com/member/publisher/3592881/websites.json?limit=100";
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);		
		curl_setopt($ch, CURLOPT_COOKIEJAR, $this->cookieFile);
		curl_setopt($ch, CURLOPT_COOKIEFILE, $this->cookieFile);
		$tmp = curl_exec($ch); // execute the curl command
		curl_close($ch);
		$decode = json_decode($tmp, true);
		if (isset($decode['list'][0]["website"]["@id"])){
			return $decode['list'][0]["website"]["@id"];
		}
		return false;
	}
	
}

Great snippet!

Also, your publisher id appears to be hard-coded into serveral of the urls.