<?php
/**
* This is the request object that actually makes the CURL calls
*
*
* @copyright 2011 Aziz Hussain
* @version 1.0
* @link http://azizsaleh.com
* @email azizsaleh@gmail.com
*/
class Request
{
/* Private variables */
private $response;
private $raw_response;
private $configs;
private $return_type = 'xml';
/* Constructor, just copy over the config variables */
public function __construct(&$configs)
{
$this->configs = $configs;
}
/*
Set return type
@param string type
*/
public function setReturnType($type = NULL)
{
if (!empty($type)) {
$this->return_type = $type;
}
}
/*
Get formatted response
@return array
*/
public function getResponse()
{
return $this->response;
}
/*
Get raw response
@return array
*/
public function getRawResponse()
{
return $this->raw_response;
}
/*
This function will make the request
@param string api_link
@param array post_data
@return array
*/
public function makeRequest($api_link, $request_data)
{
/* Execute CURL */
$curl_handler = curl_init();
if(count($request_data) > 0) {
curl_setopt($curl_handler, CURLOPT_URL, $api_link . '?' . $request_data);
} else {
curl_setopt($curl_handler, CURLOPT_URL, $api_link);
}
curl_setopt($curl_handler, CURLOPT_RETURNTRANSFER, true);
$this->raw_response = curl_exec($curl_handler);
$errorMessage = curl_errno($curl_handler);
$errorNumber = curl_error($curl_handler);
curl_close($curl_handler);
if ($this->raw_response === false)
{
echo "Error while executing CURL: # $errorNumber ($errorMessage)";
}
/* Format and return response */
$this->formatResponse();
return $this->response;
}
/*
This function will HMAC_SHA1 the signatures
@param string data
@param string secret_key
@return string
*/
public function HMAC_SHA1 ($data, $secret_key) {
return base64_encode (hash_hmac ('sha1', $data, $secret_key, true));
}
/*
This function will encode params
@param string data
@return string data
*/
public function percentEncode($data)
{
return urlencode($data);
}
/* This function will format raw response */
private function formatResponse()
{
// IF XML, parse it
if ($this->return_type == 'xml')
{
$xml_parser = xml_parser_create();
xml_parse_into_struct($xml_parser, $this->raw_response, $vals, $index);
xml_parser_free($xml_parser);
$this->response = array($vals, $index);
}
// If json return format, decode
if ($this->return_type == 'json')
{
$this->response = json_decode($this->raw_response);
}
// URL variables
if ($this->return_type == 'xml')
{
parse_str($this->raw_response, $this->response);
$this->response = (object) $this->response;
}
}
}
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