. */ /** * Request * * This file contains the class AmazonProduct_Request * * @author Matthew John Denton * @package com.mdbitz.amazon.product */ /** * AmazonProduct_Request defines the request object that specifies * the search parameters. * * Properties *

*
• ItemPage
*
• Operation
*
• ResponseGroup
*
• SearchIndex
*
• Title
*

* * @package com.mdbitz.amazon.product */ class AmazonProduct_Request implements AmazonProduct_iValid { /** * host */ private $_host = "ecs.amazonaws."; /** * uri */ private $_uri = "/onca/xml"; /** * @var array Object Parameters */ private $_params = array(); /** * @var String Secret Key */ private $_secret_key = null; /** * @var String Secret Key */ private $_domain = "com"; /** * Constructor * */ public function __construct( ) { $this->set( "Version", "2010-09-01" ); $this->set( "Service", "AWSECommerceService" ); $this->set( "ItemPage", 1 ); } /** * magic method to return non public properties * * @see get * @param mixed $property * @return mixed */ public function __get( $property ) { return $this->get( $property ); } /** * get specifed property * * @param mixed $property * @return mixed */ public function get( $property ) { if ( $property == "domain" ) { return $this->_domain; } else if (array_key_exists($property, $this->_params)) { return $this->_params[$property]; } else { return null; } } /** * magic method to set non public properties * * @see set * @param mixed $property * @param mixed $value * @return void */ public function __set( $property, $value ) { $this->set( $property, $value ); } /** * set property to specified value * * @param mixed $property * @param mixed $value * @return void */ public function set($property, $value) { if( $property == "secret_key" ) { $this->_secret_key = $value; } else if( $property == "domain" ) { $this->_domain = $value; } else { $this->_params[$property] = $value; } } /** * generate the Request's URL * */ private function getUrl( ) { // sort parameters ksort($this->_params); // clean parameters $clean_params = array(); foreach( $this->_params as $param=>$value) { $param = str_replace("%7E", "~", rawurlencode($param)); $value = str_replace("%7E", "~", rawurlencode($value)); $clean_params[] = $param . "=" . $value; } // create query string $query_string = implode( "&", $clean_params ); // create signature $signing_string = "GET\n" . $this->_host . $this->_domain . "\n" . $this->_uri . "\n" . $query_string; $signature = base64_encode(hash_hmac("sha256", $signing_string, $this->_secret_key, True) ); $signature = str_replace("%7E", "~", rawurlencode($signature)); // return query return "http://" . $this->_host . $this->_domain . $this->_uri . "?" . $query_string . "&Signature=" . $signature; } /* * perform the http request * */ public function execute( ) { // set common parameters $this->set( "Timestamp", gmdate("Y-m-d\TH:i:s\Z") ); // execute request $response = wp_remote_get( $this->getUrl(), array( 'ssl_verify' => false, 'timeout' => 5, 'user-agent' => 'AffiGet; '.get_site_url(), 'headers' => array( 'Accept' => 'application/xml', 'Content-Type' => 'application/xml', ), )); if ( is_wp_error( $response ) ){ return null; } return new AmazonProduct_Result( wp_remote_retrieve_response_code( $response ), wp_remote_retrieve_body( $response ), $this ); //ORIGINAL: //$ch = $this->generateCURL( $this->getUrl( ) ); //$data = curl_exec( $ch ); //$code = curl_getinfo( $ch, CURLINFO_HTTP_CODE ); //return new AmazonProduct_Result( $code, $data, $this ); } /** * generate cURL get request * @param $url * @return object cURL Handler */ protected function generateCURL( $url ) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url ); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_HTTPHEADER, array('User-Agent: APaPi - PHP Wrapper Library for Amazon Product API', 'Accept: application/xml', 'Content-Type: application/xml' ) ); return $ch; } /** * is this a valid Request * * @return boolean */ public function isValid() { if( AmazonProduct_Operation::isValid($this->Operation) ) { switch( $this->Operation ) { case AmazonProduct_Operation::ITEM_SEARCH : if( ! AmazonProduct_SearchIndex::isValid( $this->SearchIndex ) ) { return false; } break; case AmazonProduct_Operation::ITEM_LOOKUP : if( ! AmazonProduct_IdType::isValid( $this->IdType ) ) { return false; } break; case AmazonProduct_Operation::SIMILARITY_LOOKUP : if( ! is_null($this->SimilarityType) && ! AmazonProduct_SimilarityType::isValid( $this->SimilarityType ) ) { return false; } break; } return true; } else { return false; } } }