vtenext/include/RestApi/Client.php
2021-04-28 20:10:26 +02:00

442 lines
11 KiB
PHP

<?php
/*************************************
* SPDX-FileCopyrightText: 2009-2020 Vtenext S.r.l. <info@vtenext.com>
* SPDX-License-Identifier: AGPL-3.0-only
************************************/
/* crmv@170283 */
namespace RestService;
class Client
{
/**
* Current output format.
*
* @var string
*/
private $outputFormat = 'json';
/**
* List of possible output formats.
*
* @var array
*/
private $outputFormats = array(
'json' => 'asJSON',
'xml' => 'asXML'
);
/**
* List of possible methods.
* @var array
*/
public $methods = array('get', 'post', 'put', 'delete', 'head', 'options', 'patch');
/**
* Current URL.
*
* @var string
*/
private $url;
/**
* @var Server
*
*/
private $controller;
/**
* Custom set http method.
*
* @var string
*/
private $method;
private static $statusCodes = array(
100 => 'Continue',
101 => 'Switching Protocols',
200 => 'OK',
201 => 'Created',
202 => 'Accepted',
203 => 'Non-Authoritative Information',
204 => 'No Content',
205 => 'Reset Content',
206 => 'Partial Content',
300 => 'Multiple Choices',
301 => 'Moved Permanently',
302 => 'Found', // 1.1
303 => 'See Other',
304 => 'Not Modified',
305 => 'Use Proxy',
307 => 'Temporary Redirect',
400 => 'Bad Request',
401 => 'Unauthorized',
402 => 'Payment Required',
403 => 'Forbidden',
404 => 'Not Found',
405 => 'Method Not Allowed',
406 => 'Not Acceptable',
407 => 'Proxy Authentication Required',
408 => 'Request Timeout',
409 => 'Conflict',
410 => 'Gone',
411 => 'Length Required',
412 => 'Precondition Failed',
413 => 'Request Entity Too Large',
414 => 'Request-URI Too Long',
415 => 'Unsupported Media Type',
416 => 'Requested Range Not Satisfiable',
417 => 'Expectation Failed',
500 => 'Internal Server Error',
501 => 'Not Implemented',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Timeout',
505 => 'HTTP Version Not Supported',
509 => 'Bandwidth Limit Exceeded'
);
/**
* @param Server $pServerController
*/
public function __construct($pServerController)
{
$this->controller = $pServerController;
if (isset($_SERVER['PATH_INFO']))
$this->setUrl($_SERVER['PATH_INFO']);
$this->setupFormats();
}
/**
* @param \RestService\Server $controller
*/
public function setController($controller)
{
$this->controller = $controller;
}
/**
* @return \RestService\Server
*/
public function getController()
{
return $this->controller;
}
/**
* Sends the actual response.
*
* @param string $pHttpCode
* @param $pMessage
*/
public function sendResponse($pHttpCode = '200', $pMessage)
{
$suppressStatusCode = isset($_GET['_suppress_status_code']) ? $_GET['_suppress_status_code'] : false;
if ($this->controller->getHttpStatusCodes() &&
!$suppressStatusCode &&
php_sapi_name() !== 'cli'
) {
$status = self::$statusCodes[intval($pHttpCode)];
header('HTTP/1.0 ' . ($status ? $pHttpCode . ' ' . $status : $pHttpCode), true, $pHttpCode);
} elseif (php_sapi_name() !== 'cli') {
header('HTTP/1.0 200 OK');
}
$pMessage = array_reverse($pMessage, true);
$pMessage['status'] = intval($pHttpCode);
$pMessage = array_reverse($pMessage, true);
$method = $this->getOutputFormatMethod($this->getOutputFormat());
//crmv@170283
$response = $this->$method($pMessage);
$this->controller->getController()->log('output',$response);
echo $response;
//crmv@170283e
exit;
}
/**
* @param string $pFormat
* @return string
*/
public function getOutputFormatMethod($pFormat)
{
return $this->outputFormats[$pFormat];
}
/**
* @return string
*/
public function getOutputFormat()
{
return $this->outputFormat;
}
/**
* Detect the method.
*
* @return string
*/
public function getMethod()
{
if ($this->method) {
return $this->method;
}
$method = @$_SERVER['REQUEST_METHOD'];
if (isset($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE']))
$method = $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'];
if (isset($_GET['_method']))
$method = $_GET['_method'];
else if (isset($_POST['_method']))
$method = $_POST['_method'];
$method = strtolower($method);
if (!in_array($method, $this->methods))
$method = 'get';
return $method;
}
/**
* Sets a custom http method. It does then not check against
* SERVER['REQUEST_METHOD'], $_GET['_method'] etc anymore.
*
* @param string $pMethod
* @return Client
*/
public function setMethod($pMethod)
{
$this->method = $pMethod;
return $this;
}
/**
* Set header Content-Length $pMessage.
*
* @param $pMessage
*/
public function setContentLength($pMessage)
{
if (php_sapi_name() !== 'cli')
header('Content-Length: ' . strlen($pMessage));
}
/**
* Converts $pMessage to pretty json.
*
* @param $pMessage
* @return string
*/
public function asJSON($pMessage)
{
if (php_sapi_name() !== 'cli')
header('Content-Type: application/json; charset=utf-8');
$result = $this->jsonFormat($pMessage);
$this->setContentLength($result);
return $result;
}
/**
* Indents a flat JSON string to make it more human-readable.
*
* Original at http://recursive-design.com/blog/2008/03/11/format-json-with-php/
*
* @param string $json The original JSON string to process.
*
* @return string Indented version of the original JSON string.
*/
public function jsonFormat($json)
{
if (!is_string($json)) $json = json_encode($json);
$result = '';
$pos = 0;
$strLen = strlen($json);
$indentStr = ' ';
$newLine = "\n";
$inEscapeMode = false; //if the last char is a valid \ char.
$outOfQuotes = true;
for ($i = 0; $i <= $strLen; $i++) {
// Grab the next character in the string.
$char = substr($json, $i, 1);
// Are we inside a quoted string?
if ($char == '"' && !$inEscapeMode) {
$outOfQuotes = !$outOfQuotes;
// If this character is the end of an element,
// output a new line and indent the next line.
} elseif (($char == '}' || $char == ']') && $outOfQuotes) {
$result .= $newLine;
$pos--;
for ($j = 0; $j < $pos; $j++) {
$result .= $indentStr;
}
} elseif ($char == ':' && $outOfQuotes) {
$char .= ' ';
}
// Add the character to the result string.
$result .= $char;
// If the last character was the beginning of an element,
// output a new line and indent the next line.
if (($char == ',' || $char == '{' || $char == '[') && $outOfQuotes) {
$result .= $newLine;
if ($char == '{' || $char == '[') {
$pos++;
}
for ($j = 0; $j < $pos; $j++) {
$result .= $indentStr;
}
}
if ($char == '\\' && !$inEscapeMode)
$inEscapeMode = true;
else
$inEscapeMode = false;
}
return $result;
}
/**
* Converts $pMessage to xml.
*
* @param $pMessage
* @return string
*/
public function asXML($pMessage)
{
$xml = $this->toXml($pMessage);
$xml = "<?xml version=\"1.0\"?>\n<response>\n$xml</response>\n";
$this->setContentLength($xml);
return $xml;
}
/**
* @param mixed $pData
* @param string $pParentTagName
* @param int $pDepth
* @return string XML
*/
public function toXml($pData, $pParentTagName = '', $pDepth = 1)
{
if (is_array($pData)) {
$content = '';
foreach ($pData as $key => $data) {
$key = is_numeric($key) ? $pParentTagName . '-item' : $key;
$content .= str_repeat(' ', $pDepth)
. '<' . htmlspecialchars($key) . '>' .
$this->toXml($data, $key, $pDepth + 1)
. '</' . htmlspecialchars($key) . ">\n";
}
return $content;
} else {
return htmlspecialchars($pData);
}
}
/**
* Add a additional output format.
*
* @param string $pCode
* @param string $pMethod
* @return Client $this
*/
public function addOutputFormat($pCode, $pMethod)
{
$this->outputFormats[$pCode] = $pMethod;
return $this;
}
/**
* Set the current output format.
*
* @param string $pFormat a key of $outputForms
* @return Client
*/
public function setFormat($pFormat)
{
$this->outputFormat = $pFormat;
return $this;
}
/**
* Returns the url.
*
* @return string
*/
public function getUrl()
{
return $this->url;
}
/**
* Set the url.
*
* @param string $pUrl
* @return Client $this
*/
public function setUrl($pUrl)
{
$this->url = $pUrl;
return $this;
}
/**
* Setup formats.
*
* @return Client
*/
public function setupFormats()
{
//through HTTP_ACCEPT
if (isset($_SERVER['HTTP_ACCEPT']) && strpos($_SERVER['HTTP_ACCEPT'], '*/*') === false) {
foreach ($this->outputFormats as $formatCode => $formatMethod) {
if (strpos($_SERVER['HTTP_ACCEPT'], $formatCode) !== false) {
$this->outputFormat = $formatCode;
break;
}
}
}
//through uri suffix
if (preg_match('/\.(\w+)$/i', $this->getUrl(), $matches)) {
if (isset($this->outputFormats[$matches[1]])) {
$this->outputFormat = $matches[1];
$url = $this->getUrl();
$this->setUrl(substr($url, 0, (strlen($this->outputFormat) * -1) - 1));
}
}
//through _format parametr
if (isset($_GET['_format'])) {
if (isset($this->outputFormats[$_GET['_format']])) {
$this->outputFormat = $_GET['_format'];
}
}
return $this;
}
}