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<?php
/*+**********************************************************************************
* The contents of this file are subject to the vtiger CRM Public License Version 1.1
* ("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.
************************************************************************************/
class Vtiger_Response {
// Constants
/**
* Emit response wrapper as raw string
*/
static $EMIT_RAW = 0;
/**
* Emit response wrapper as json string
*/
static $EMIT_JSON= 1;
/**
* Emit response wrapper as html string
*/
static $EMIT_HTML= 2;
/**
* Emit response wrapper as string/jsonstring
*/
static $EMIT_JSONTEXT= 3;
/**
* Emit response wrapper as padded-json
*/
static $EMIT_JSONP = 4;
/**
* Error data.
*/
private $error = NULL;
/**
* Result data.
*/
private $result = NULL;
/* Active emit type */
private $emitType= 1; // EMIT_JSON
/* JSONP padding */
private $emitJSONPFn=false;// for EMIT_JSONP
/* List of response headers */
private $headers = array();
/**
* Set headers to send
*/
function setHeader($header) {
$this->headers[] = $header;
}
/**
* Set error data to send
*/
function setError($code, $message=null, $title=null) {
if ($message == null) $message = $code;
$error = array('code' => $code, 'message' => $message, 'title' => $title);
$this->error = $error;
}
/**
* Set emit type.
*/
function setEmitType($type) {
$this->emitType = $type;
}
/**
* Set padding method name for JSONP emit type.
*/
function setEmitJSONP($fn) {
$this->setEmitType(self::$EMIT_JSONP);
$this->emitJSONPFn = $fn;
}
/**
* Is emit type configured to JSON?
*/
function isJSON() {
return $this->emitType == self::$EMIT_JSON;
}
/**
* Get the error data
*/
function getError() {
return $this->error;
}
/**
* Check the presence of error data
*/
function hasError() {
return !is_null($this->error);
}
/**
* Set the result data.
*/
function setResult($result) {
$this->result = $result;
}
/**
* Update the result data.
*/
function updateResult($key, $value) {
$this->result[$key] = $value;
}
/**
* Get the result data.
*/
function getResult() {
return $this->result;
}
/**
* Prepare the response wrapper.
*/
protected function prepareResponse() {
$response = array();
if($this->error !== NULL) {
$response['success'] = false;
$response['error'] = $this->error;
} else {
$response['success'] = true;
$response['result'] = $this->result;
}
return $response;
}
/**
* Send response to client.
*/
function emit() {
$contentTypeSent = false;
foreach ($this->headers as $header) {
if (!$contentTypeSent && stripos($header, 'content-type') === 0) { $contentTypeSent = true; }
header($header);
}
/* Set right charset (UTF-8) to avoid IE complaining about c00ce56e error */
if ($this->emitType == self::$EMIT_JSON) {
if (!$contentTypeSent) header('Content-type: text/json; charset=UTF-8');
$this->emitJSON();
} else if ($this->emitType == self::$EMIT_JSONTEXT){
if (!$contentTypeSent) header('Content-type: text/json; charset=UTF-8');
$this->emitText();
} else if ($this->emitType == self::$EMIT_HTML){
if (!$contentTypeSent) header('Content-type: text/html; charset=UTF-8');
$this->emitRaw();
} else if ($this->emitType == self::$EMIT_RAW) {
if (!$contentTypeSent) header('Content-type: text/plain; charset=UTF-8');
$this->emitRaw();
} else if ($this->emitType == self::$EMIT_JSONP) {
if (!$contentTypeSent) header('Content-type: application/javascript; charset=UTF-8');
echo $this->emitJSONPFn . "(";
$this->emitJSON();
echo ")";
}
}
/**
* Emit response wrapper as JSONString
*/
protected function emitJSON() {
echo Zend_Json::encode($this->prepareResponse());
}
/**
* Emit response wrapper as String/JSONString
*/
protected function emitText() {
if ($this->result === NULL) {
if (is_string($this->error)) echo $this->error;
else echo Zend_Json::encode($this->prepareResponse());
} else {
if (is_string($this->result)) echo $this->result;
else echo Zend_Json::encode($this->prepareResponse());
}
}
/**
* Emit response wrapper as String.
*/
protected function emitRaw() {
if($this->result === NULL) echo (is_string($this->error))? $this->error : var_export($this->error, true);
echo $this->result;
}
}