<?php
/*+***********************************************************************************
 * The contents of this file are subject to the vtiger CRM Public License Version 1.0
 * ("License"); You may not use this file except in compliance with the License
 * The Original Code is:  vtiger CRM Open Source
 * The Initial Developer of the Original Code is vtiger.
 * Portions created by vtiger are Copyright (C) vtiger.
 * All Rights Reserved.
 *************************************************************************************/
	
	function setBuiltIn($json){
		$json->useBuiltinEncoderDecoder = true;
	}
	
	class OperationManager{
		private $format;
		private $formatsData=array(
			"json"=>array(
				"includePath"=>"include/Zend/Json.php",
				"class"=>"Zend_Json",
				"encodeMethod"=>"encode",
				"decodeMethod"=>"decode",
				"postCreate"=>"setBuiltIn"
			)
		);
		private $operationMeta = null;
		private $formatObjects ;
		private $inParamProcess ;
		private $sessionManager;
		private $pearDB;
		public $operationName;
		public $type;
		private $handlerPath;
		private $handlerMethod;
		private $preLogin;
		private $operationId;
		private $operationParams;
		
		function __construct($adb,$operationName,$format, $sessionManager){
			
			$this->format = strtolower($format);
			$this->sessionManager = $sessionManager;
			$this->formatObjects = array();
			
			foreach($this->formatsData as $frmt=>$frmtData){
				require_once($frmtData["includePath"]);
				$instance = new $frmtData["class"]();
				$this->formatObjects[$frmt]["encode"] = array(&$instance,$frmtData["encodeMethod"]);
				$this->formatObjects[$frmt]["decode"] = array(&$instance,$frmtData["decodeMethod"]);
				if($frmtData["postCreate"]){
					call_user_func($frmtData["postCreate"],$instance);
				}
			}
			
			$this->pearDB = $adb;
			$this->operationName = $operationName;
			$this->inParamProcess = array();
			$this->inParamProcess["encoded"] = &$this->formatObjects[$this->format]["decode"];
			$this->fillOperationDetails($operationName);
		}
		
		function isPreLoginOperation(){
			return $this->preLogin == 1;
		}
		
		private function fillOperationDetails($operationName){
			$sql = "select * from vtiger_ws_operation where name=?";
			$result = $this->pearDB->pquery($sql,array($operationName));
			if($result){
				$rowCount = $this->pearDB->num_rows($result);
				if($rowCount > 0){
					$row = $this->pearDB->query_result_rowdata($result,0);
					$this->type = $row['type'];
					$this->handlerMethod = $row['handler_method'];
					$this->handlerPath = $row['handler_path'];
					$this->preLogin = $row['prelogin'];
					$this->operationName = $row['name'];
					$this->operationId = $row['operationid'];
					$this->fillOperationParameters();
					return;
				}
			}
			throw new WebServiceException(WebServiceErrorCode::$UNKNOWNOPERATION,"Unknown operation requested");
		}
		
		private function fillOperationParameters(){
			$sql = "select * from vtiger_ws_operation_parameters where operationid=? order by sequence";
			$result = $this->pearDB->pquery($sql,array($this->operationId));
			$this->operationParams = array();
			if($result){
				$rowCount = $this->pearDB->num_rows($result);
				if($rowCount > 0){
					for ($i=0;$i<$rowCount;++$i){
						$row = $this->pearDB->query_result_rowdata($result,$i);
						array_push($this->operationParams,array($row['name']=>$row['type']));
					}
				}
			}
		}
		
		public function getOperationInput(){
			$type = strtolower($this->type);
			switch($type){
				case 'get':
					if (!isset($_GET['operation']) && isset($_POST['operation'])) {
						throw new WebServiceException(WebServiceErrorCode::$METHODNOTALLOWED,"Method not allowed");
					}
					$input = &$_GET;
					return $input;
				case 'post':
					if (isset($_GET['operation']) && !isset($_POST['operation'])) {
						throw new WebServiceException(WebServiceErrorCode::$METHODNOTALLOWED,"Method not allowed");
					}
					$input = &$_POST;
					return $input;
				default: $input = &$_REQUEST;
					return $input;
			}
		}
		
		function sanitizeOperation($input){
			return $this->sanitizeInputForType($input);
		}
		
		function sanitizeInputForType($input){
			
			$sanitizedInput = array();
			foreach($this->operationParams as $ind=>$columnDetails){
				foreach ($columnDetails as $columnName => $type) {
					$sanitizedInput[$columnName] = $this->handleType($type,vtws_getParameter($input,$columnName));;
				}
			}
			return $sanitizedInput;
		}
		
		function handleType($type,$value){
			$result;
			$value = stripslashes($value);
			$type = strtolower($type);
			if($this->inParamProcess[$type]){
				$result = call_user_func($this->inParamProcess[$type],$value);
			}else{
				$result = $value;
			}
			return $result;
		}
		
		function runOperation($params,$user){
			global $API_VERSION;
			try{
				$operation = strtolower($this->operationName);
				if(!$this->preLogin){
					$params[] = $user;
					return call_user_func_array($this->handlerMethod,$params);
				}else{
					$userDetails = call_user_func_array($this->handlerMethod,$params);
					if(is_array($userDetails)){
						return $userDetails;
					}else{
						$this->sessionManager->set("authenticatedUserId", $userDetails->id);
						global $adb;
						$webserviceObject = VtigerWebserviceObject::fromName($adb,"Users");
						$userId = vtws_getId($webserviceObject->getEntityId(),$userDetails->id);
						$vtigerVersion = vtws_getVtigerVersion();
						$tagVersion = vtws_getTagVersion();
						$resp = array("sessionName"=>$this->sessionManager->getSessionId(),"userId"=>$userId,"version"=>$API_VERSION,"vtigerVersion"=>$vtigerVersion,"tagVersion"=>$tagVersion);
						return $resp;
					}
				}
			}catch(WebServiceException $e){
				throw $e;
			}catch(Exception $e){
				$errorMessage = $e->getMessage();
				if (!empty($errorMessage)) {
					throw new WebServiceException(WebServiceErrorCode::$INTERNALERROR,$errorMessage);
				}
				else {
					throw new WebServiceException(WebServiceErrorCode::$INTERNALERROR,"Unknown Error while processing request");
				}
			}
			
		}
		
		function encode($param){
			return call_user_func($this->formatObjects[$this->format]["encode"],$param);
		}
		
		function getOperationIncludes(){
			$includes = array();
			array_push($includes,$this->handlerPath);
			return $includes;
		}
		
	}
	
?>