ptut-vhost/build/http/core/HttpRequest.php

238 lines
6.6 KiB
PHP

<?php
namespace http\core;
class HttpRequest{
/* [0] Constants
=========================================================*/
/* (1) Content-Type */
const CT_BINARY = 0; // unknown
const CT_TEXT = 1;
const CT_JSON = 2;
const CT_YAML = 3;
const CT_MULTIPART_FORM_DATA = 4;
const CT_X_WWW_FORM_URLENCODED = 5;
/* [1] Attributes
=========================================================*/
private $uri;
private $headers;
private $method;
private $postdata;
private $getdata;
private $type;
private $body;
/* [2] Constructs an HTTP Request based on environment
*
* @return instance<HttpRequest> auto-filled HTTP Request
*
=========================================================*/
public function __construct(){
/* [1] Define URI & Status Code & method
=========================================================*/
$this->uri = $_SERVER['REQUEST_URI'];
$this->method = $_SERVER['REQUEST_METHOD'];
/* [2] Define headers
=========================================================*/
$this->headers = self::getallheaders_adapter();
/* [3] Define default datasets (GET, POST)
=========================================================*/
/* (1) Add to $_GET legacy GET parameters */
parse_str(parse_url($this->uri)['query'], $legacy_get);
$_GET = array_merge($_GET, $legacy_get);
/* (2) Store GET parameters */
$this->getdata = $_GET;
/* (3) Store POST parameters */
$this->postdata = $_POST;
/* [4] Define BODY & its type
=========================================================*/
/* (1) Default: set plain/text body */
$this->body = \file_get_contents('php://input');
/* (2) Fetch content type */
if( isset($this->headers['Content-Type']) )
$this->type = self::getContentType($this->headers['Content-Type']);
else
$this->type = self::getContentType();
/* [5] Parse BODY data -> POST
=========================================================*/
$this->parseBody();
}
/* GET CONSTANT CT_* FROM `Content-Type` HEADER
*
* @pContentType<String> `Content-Type` header value
*
* @return type<int> Constant value
*
*/
private static function getContentType($pContentType=null){
/* [1] Checks argv
=========================================================*/
if( is_null($pContentType) )
if( isset($_SERVER['CONTENT_TYPE']) )
$pContentType = $_SERVER['CONTENT_TYPE'];
else
$pContentType = 'text/plain';
/* [2] Checks types
=========================================================*/
/* (1) Form Data Types
---------------------------------------------------------*/
/* (1) multipart/form-data */
if( preg_match('/^multipart\/form\-data; boundary=(.+)$/i', $pContentType) )
return self::CT_MULTIPART_FORM_DATA;
/* (2) application/x-www-form-urlencoded */
if( preg_match('/^application\/x\-www\-form\-urlencoded/i', $pContentType) )
return self::CT_X_WWW_FORM_URLENCODED;
/* (2) Data types
---------------------------------------------------------*/
/* (1) Basic JSON content type */
if( preg_match('/^application\/json/i', $pContentType) )
return self::CT_JSON;
/* (2) Basic YAML content type */
if( preg_match('/^application\/yaml/i', $pContentType) )
return self::CT_YAML;
/* (3) Basic TEXT content type */
if( preg_match('/text\/[a-z]+/', $pContentType) )
return self::CT_TEXT;
/* (3) Default Type
---------------------------------------------------------*/
return self::CT_BINARY;
}
/* PARSES BODY DATA
*
*/
private function parseBody(){
/* [1] If empty body -> do nothing
=========================================================*/
if( strlen($this->body) === 0 )
return true;
/* [2] Management for each ContentType
=========================================================*/
switch($this->type){
/* (1) multipart/form-data -> parse for not-POST methods
---------------------------------------------------------*/
case self::CT_MULTIPART_FORM_DATA:
/* (1) Fetch the boundary */
if( !preg_match('/boundary=(.+)$/i', $this->headers['Content-Type'], $match) )
return false;
$boundary = $match[1];
/* (2) Break body into parts */
$splitter = "/(?:\n|\r\n|--)*$boundary(?:\n|\r\n|--)?/im";
$parts = preg_split($splitter, $this->body);
/* (3) Process parts */
foreach($parts as $part)
if( preg_match('/^Content\-Disposition: form\-data; name=\"([^"]+)\"(?:\n|\r\n){2}(.+)$/mi', $part, $match) )
$this->postdata[$match[1]] = $match[2];
/* (4) Erases body */
$this->body = '';
break;
/* (2) application/x-www-form-urlencoded -> parse for not-POST methods
---------------------------------------------------------*/
case self::CT_X_WWW_FORM_URLENCODED:
/* Auto parse builtin-php function */
parse_str($this->body, $this->postdata);
/* Erases body */
$this->body = '';
break;
/* (3) application/json -> parse if no error
---------------------------------------------------------*/
case self::CT_JSON:
/* (1) Decode body content */
$decoded = json_decode($this->body, true);
/* (2) If error -> do nothing */
if( is_null($decoded) )
return;
/* (3) Parse body into body */
$this->body = $decoded;
break;
/* (4) application/yaml -> parse if no error
---------------------------------------------------------*/
case self::CT_YAML:
break;
}
}
public function BODY(){ return $this->body; }
public function POST(){ return $this->postdata; }
public function GET(){ return $this->getdata; }
public function HEADERS(){ return $this->headers; }
public function METHOD(){ return $this->method; }
public function URI(){ return $this->uri; }
private static function getallheaders_adapter(){
/* (1) If exists -> use it
---------------------------------------------------------*/
if( function_exists('getallheaders') )
return getallheaders();
/* (2) If does not (php-fpm)
---------------------------------------------------------*/
/* (1) init. variables */
$fetched_headers = [];
/* (2) Get all headers from $_SERVER */
foreach($_SERVER as $hname=>$hvalue ){
// {1} Store only if begins with 'HTTP_' //
if( substr($hname,0,5) == 'HTTP_' )
$fetched_headers[ str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($hname,5)))))] = $hvalue;
}
/* (3) Return created headers */
return $fetched_headers;
}
}