class.omoney.http.helper.php

<?php
	class OmoneyHttp {
		
		public $_curl = null;
		public $_headers = array();
		
		/**
			* 	Class constructor.
			*	
		*/
		public function __construct() {
			$this->_initCurl();
		}
		
		/**
			* 	Class destructor.
			*
		*/
		public function __destruct() {
			curl_close($this->_curl);
		}
		
		/**
			* 	Initialize curl.
			*
			*	Check if curl is enabled in the PHP environment.
			*	Trigger error if curl is not available.
			*	Initialize curl and set defaults.
			*
			* 	@return void
		*/
		private function _initCurl() {
			if(!function_exists('curl_version')) {
				trigger_error("Curl not available", E_USER_ERROR);
			}
			else {
				$this->_curl = curl_init();
				$this->_setDefaults();
			}
		}
		
		/**
			* 	Set curl defaults.
			*	
			* 	@return void
		*/
		private function _setDefaults() {  
			curl_setopt($this->_curl, CURLOPT_VERBOSE, 1);
			curl_setopt($this->_curl, CURLOPT_SSL_VERIFYPEER, FALSE);
			curl_setopt($this->_curl, CURLOPT_SSL_VERIFYHOST, FALSE);
			curl_setopt($this->_curl, CURLOPT_SSLVERSION , 'CURL_SSLVERSION_TLSv1_2');
			curl_setopt($this->_curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
			curl_setopt($this->_curl, CURLOPT_RETURNTRANSFER, 1);
			curl_setopt($this->_curl, CURLOPT_MAXREDIRS, 10);
			curl_setopt($this->_curl, CURLOPT_TIMEOUT, 30);
			curl_setopt($this->_curl, CURLOPT_HEADER, 1);
			curl_setopt($this->_curl, CURLINFO_HEADER_OUT, 1);
		}
		
		/**
			* 	Set curl headers using the class header array property.
			*
			* 	@return void
		*/
		private function _setHeaders() {
			curl_setopt($this->_curl, CURLOPT_HTTPHEADER, $this->_headers); 
		}
		
		/**
			* 	Execute curl request.
			*
			*	Set headers for curl instance.
			*	Run curl instance.
			*	Return result or trigger warning.
			*
			* 	@return array Result of the curl request
		*/
		private function _sendRequest() {
			$this->_setHeaders();
			$result = curl_exec($this->_curl);
			if(curl_errno($this->_curl)){
				trigger_error("Request Error:" . curl_error($this->_curl), E_USER_WARNING);
			}
			$headerSize = curl_getinfo($this->_curl, CURLINFO_HEADER_SIZE);
			$body = substr($result, $headerSize);
			return json_decode($body, true);
		}
		
		/**
			* 	Reset the helper.
			*	
			*	Re-initialize the curl instance.
			*	Reset class header array property.
			*
			* 	@return void
		*/
		public function resetHelper() {
			$this->_curl = null;
			$this->_initCurl();
			$this->_headers = array();
		}
		
		/**
			* 	Set curl url.
			*	
			*	@param string $url Url to be called using curl
			* 	@return void
		*/
		public function setUrl($url) {
			curl_setopt($this->_curl, CURLOPT_URL, $url); 
		}
		
		/**
			* 	Set body of the curl request.
			*	
			*	URL encode the request body.
			*	Check if data is array and url encode.
			*	Set the curl body.
			*	Set curl post options
			*	
			*	@param array|string $postData Curl request body
			* 	@return void
		*/
		public function setBody($postData) {
			if(is_array($postData)) {
				$postData = json_encode($postData);
			}
			curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $postData);
			curl_setopt($this->_curl, CURLOPT_POST, true);
		}

		/**
			* 	Set body of the curl request.
			*	
			*	URL encode the request body.
			*	Check if data is array and url encode.
			*	Set the curl body.
			*	Set curl method to PATCH
			*	
			*	@param array|string $data Curl request body
			* 	@return void
		*/
		public function setPatchBody($data){
			if(is_array($data)) {
				$data = json_encode($data);
			}
			curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $data);
			curl_setopt($this->_curl, CURLOPT_CUSTOMREQUEST, 'PATCH');
		}

		/**
			* 	Set body of the curl request.
			*	
			*	URL encode the request body.
			*	Check if data is array and url encode.
			*	Set the curl body.
			*	Set curl method to POST
			*	
			*	@param array|string $data Curl request body
			* 	@return void
		*/
		public function setPostBody($data){
			if(is_array($data)) {
				$data = json_encode($data);
			}
			curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $data);
			curl_setopt($this->_curl, CURLOPT_CUSTOMREQUEST, 'POST');
		}

		/**
			* 	Set body of the curl request.
			*	
			*	URL encode the request body.
			*	Check if data is array and url encode.
			*	Set the curl body.
			*	Set curl method to GET
			*	
			*	@param array|string $data Curl request body
			* 	@return void
		*/
		public function setGetBody($data){
			if(is_array($data)) {
				$data = json_encode($data);
			}
			curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $data);
			curl_setopt($this->_curl, CURLOPT_CUSTOMREQUEST, 'GET');
		}
		
		/**
			* 	Set authentication attributes of the curl request.
			*	
			*	@param string $authData Authentication credentials
			* 	@return void
		*/
		public function setAuthentication($authData) {
			curl_setopt($this->_curl, CURLOPT_USERPWD, $authData);
		}
		
		/**
			* 	Push header values into class header array property.
			*	
			*	@param string $header Header key-value as string
			* 	@return void
		*/
		public function addHeader($header) {
			$this->_headers[] = $header;
		}	
		
		/**
			* 	Public function to start execution of curl request.
			*	
			*	Check if post type request and setup curl options.
			*	If post request, set curl body with required data.
			*	Call internal function to execute curl instance.
			*
			* 	@return array Curl response
		*/
		public function sendRequest() {
			return $this->_sendRequest();
		}
		
	}

?>