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<?php
/**
*
* Description
*
* @package Paystack
* @category Source
* @author Michael Akanji <matscode@gmail.com>
* @date 2017-06-25
* @copyright (c) 2016 - 2017, TECRUM (http://www.tecrum.com)
*
*/
namespace Matscode\Paystack;
class CURL
{
private
$_url,
$_curl,
$_requestWithPost = false,
$_allowedReqMethodForPost =
[
'POST',
'UPDATE',
'PUT',
'PATCH',
],
$_errorCode,
$_errorMessage;
public
$requestMethod,
$requestHeader = [];
const
USER_AGENT = 'PHP CURL/1.0 (@matscode)';
public function __construct( $url, $requestMethod = null )
{
if ( ! extension_loaded( 'curl' ) ) {
throw new \ErrorException( 'CURL Extension not loaded, Install libcurl php extension' );
}
//initialize CUrl
$this->_url = $url;
$this->_curlInit( $this->_url );
//set requestMethod property
$this->requestMethod = $requestMethod;
//set the default request method to 'POST'
if ( ! is_null( $this->requestMethod ) ) {
$this->setRequestMethod( $this->requestMethod );
}
return $this;
}
private function _curlInit( $url )
{
$this->_curl = curl_init();
$this->setOption( CURLOPT_USERAGENT, self::USER_AGENT )
->setOption( CURLOPT_URL, $url )
// return response
->setOption( CURLOPT_RETURNTRANSFER, true );
// turn off caching
$this->setRequestHeader( 'Cache-Control', 'no-cache' );
return $this;
}
public function setOption( $option, $value )
{
// Set curl option
curl_setopt( $this->_curl, $option, $value );
return $this;
}
public function setRequestMethod( $requestMethod )
{
switch ( $requestMethod ) {
case 'GET' :
$this->setOption( CURLOPT_HTTPGET, true );
break;
case 'UPDATE' :
$this->setOption( CURLOPT_CUSTOMREQUEST, 'UPDATE' );
break;
case 'PUT' :
$this->setOption( CURLOPT_CUSTOMREQUEST, 'PUT' );
break;
case 'PATCH' :
$this->setOption( CURLOPT_CUSTOMREQUEST, 'PATCH' );
break;
case 'DELETE' :
$this->setOption( CURLOPT_CUSTOMREQUEST, 'DELETE' );
break;
case 'POST':
$this->doPostRequest();
default:
$this->setOption( CURLOPT_POST, true );
break;
}
return $this;
}
/**
* @param null $qStringArray
*
* @return string
*/
public function getUrl( $qStringArray = null )
{
if ( ! is_null( $qStringArray ) &&
( is_array( $qStringArray ) || is_object( $qStringArray ) )
) {
$this->_url .= '?' . http_build_query( $qStringArray );
}
return $this->_url;
}
/**
* @param string $url
*
* @return $this
*/
public function setUrl(
$url
) {
$this->setOption( CURLOPT_URL, $url );
$this->_url = $url;
return $this;
}
public function doPostRequest()
{
if ( in_array( $this->requestMethod, $this->_allowedReqMethodForPost ) ) {
$this->_requestWithPost = true;
}
return $this;
}
public function run( $data, $as = 'urlencoded', $closeCurl = false ) // urlencoded | json | form-data
{
if ( $this->_requestWithPost ) {
//make a post request
switch ( $as ) {
case 'json':
if ( is_array( $data ) ) {
$data = json_encode( $data );
$this->setRequestHeader( 'Content-Type', 'application/json' );
} else {
throw new \ErrorException( 'Data argument passed to the run method must be of datatype Array when posting as JSON' );
}
break;
case 'form-data':
if ( is_array( $data ) || is_object( $data ) ) {
$this->setRequestHeader( 'Content-Type', 'multipart/form-data' );
} else {
throw new \ErrorException( 'Data argument passed to the run method must be of datatype Array or Object when postiing as FORM-DATA' );
}
break;
case 'urlenconded':
// convert data to queryString - Native
$data = http_build_query( $data );
// continue to default
default:
$this->setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );
break;
}
$this->setOption( CURLOPT_POSTFIELDS, $data ); //Post Fields
} else {
//make a built query string and reset CURLOPT_URL
$this->setOption( CURLOPT_URL, $this->getUrl( $data ) );
}
// execute curl
$response = curl_exec( $this->_curl );
// save error details in memory
$this->_errorCode = curl_errno( $this->_curl );
$this->_errorMessage = curl_error( $this->_curl );
if ( $closeCurl ) {
// close curl connection by default
if ( is_resource( $this->_curl ) ) {
curl_close( $this->_curl );
}
}
// return response from endpoint
return $response;
}
/**
* @param $key
* @param $value
*
* @return $this
*/
public function setRequestHeader( $key, $value = null )
{
if ( ! is_array( $key ) ) {
// assist with capitalizing http header keys
$headers[] = ucwords( $key ) . ': ' . $value;
} else {
$headers = $key;
}
// merge requestHeader to base header
$this->requestHeader = array_merge( $headers, $this->requestHeader );
$this->setOption( CURLOPT_HTTPHEADER, $this->requestHeader );
return $this;
}
public function getErrorCode()
{
return $this->_errorCode;
}
public function getErrorMessage()
{
return $this->_errorMessage;
}
/**
* @return array
*/
public function getRequestHeader()
{
return $this->requestHeader;
}
}