Trading.php

<?php namespace rearley\Ebay;

   
/**
 * Ebay Trading API
 * @author Rick Earley <rick@earleyholdings.com>
 * @category Ebay API
 * @package Trading API
 * @version 0.1.3 
 */
class Trading {
    
    /**
     * Gateway URI
     * @var array 
     */
    private $gateway_uri = array(
        'sandbox'=>'https://api.sandbox.ebay.com/ws/api.dll',
        'production'=>'https://api.ebay.com/ws/api.dll'
    );
    
    /**
     * By default, the library is set to sandbox mode for testing.
     * @var bool
     */
    private $sandbox_mode = TRUE;
    
    /**
     * Configurable Headers to be sent to the eBay API
     * @var array
     */
    private $headers = array();
    private $content_length = '';
    
    /**
     * Developer Information
     */
    private $developer_id = ''; //DevID
    private $application_id = ''; //AppID
    private $certificate_id = ''; //certID
    private $user_token ='';
    
    /**
     * Input Fields 
     */
    private $request = '';

    
    /**
     * Call Options 
     */
    private $call_reference = '';
    private $site_code = array(
        'site_id'=>'0',
        'abbreviation'=>'US',
        'currency'=>'USD'
    ); //http://developer.ebay.com/DevZone/XML/docs/Reference/eBay/types/SiteCodeType.html
    
    
    /**
     * Responses
     */
    public $error = array();
    public $results = FALSE;
    
    
    function __construct(){
        
        spl_autoload_register(function($className){
            
            $className = ltrim($className, '\\');
            $fileName  = '';
            $namespace = '';
            if ($lastNsPos = strripos($className, '\\')) {
                $namespace = substr($className, 0, $lastNsPos);
                $className = substr($className, $lastNsPos + 1);
                $fileName  = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
            }
            $fileName .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php';
            $fileName = str_replace('rearley\\Ebay\\', '', $fileName);
            require $fileName;
            
        });
    }
   
    /**
     * AddFixedPriceItem Call Reference
     * @access public
     * @link http://developer.ebay.com/DevZone/XML/docs/Reference/eBay/AddFixedPriceItem.html
     * @return boolean 
     */
    public function AddFixedPriceItem(){
        
    }
        
    /**
     * Set user token used on most trading calls
     * @access public
     * @param string $token 
     */
    public function CallReference($call_reference){
        $this->call_reference = $call_reference;
    }
    
    /**
     * Set user token used on most trading calls
     * @access public
     * @param string $token 
     */
    public function UserToken($token){
        $this->user_token = $token;
    }
    
    /**
     * Set DevID
     * @access public
     * @param string $devid 
     */
    public function DevID($devid){
        $this->developer_id = trim($devid);
    }
    
    /**
     * Set AppID
     * @access public
     * @param string $appid 
     */
    public function AppID($appid){
        $this->application_id = trim($appid);
    }
    
    /**
     * Set CertID
     * @access public
     * @param string $certid 
     */
    public function CertID($certid){
        $this->certificate_id = trim($certid);
    }
        
    /**
     * Returns 1/0 for boolean check
     * @param string|boolean $field
     * @return int 
     */
    private function _get_boolean($field){
        
        $boolean = '';
        
        if(is_bool($field)){
            if($field){
                $boolean =  '1';
            } else {
                $boolean = '0';
            }
        } else {
            if(strtolower($field) == 'true'){
                $boolean = '1';
            } else {
                $boolean = '0';
            }
        }
        
        return $boolean;
    }
    
    /**
     * Build Headers
     * @access private
     * @todo generate an dpopulate content-length 
     */
    private function _build_headers(){
        
        $this->headers = array(
            'X-EBAY-API-COMPATIBILITY-LEVEL: 681',
            'X-EBAY-API-DEV-NAME: '.$this->developer_id,
            'X-EBAY-API-APP-NAME: '.$this->application_id,
            'X-EBAY-API-CERT-NAME: '.$this->certificate_id,
            'X-EBAY-API-CALL-NAME: '.$this->call_reference,
            'X-EBAY-API-SITEID: '.$this->site_code['site_id'],
            //'Content-Type: "text/xml"',
            //'Content-Length: '.$this->content_length
        );
        
    }
    
    /**
     * Builds the RequestCredentials XML
     * @access private 
     */
    private function _build_request_credentials(){
        
        $request = '<RequesterCredentials>';
        $request .= '<eBayAuthToken>'.$this->user_token.'</eBayAuthToken>';
        $request .= '</RequesterCredentials>';
        
        return $request;
    }
    
    /**
     * Sends request to Ebay
     * @param string $url
     * @param array $headers
     * @param string $postData
     * @return bool|string 
     */
    private function _send($postData) {
        
        // Build Rquest
        $postData = '<?xml version="1.0" encoding="utf-8"?>'.$postData;
        
        // Build Headers
        $this->content_length = strlen($postData);
        $this->_build_headers();
               
        // Get URL
        $url = '';
        if($this->sandbox_mode){
            $url = $this->gateway_uri['sandbox'];
        } else {
            $url = $this->gateway_uri['production'];
        }

        // Setup
        $ch = curl_init();

        // Options
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

        // Execute
        $response = curl_exec($ch);       
        
        // Report Errors
        if (curl_errno($ch) !== 0) {
            
            $this->error['function'] = 'Send';
            $this->error['number'] = curl_errno($ch);
            $this->error['message'] = curl_error($ch);
            $this->error['curl_info'] = curl_getinfo($ch);

            $response = FALSE;
        }

        // Close
        curl_close($ch);
        $this->results = $response;
        
        if($response == FALSE){
            return FALSE;
        } else {
            return TRUE;
        }
    }

}