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File: src/Utils/Http/URI.php

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File: src/Utils/Http/URI.php
Role: Class source
Content type: text/plain
Description: Class source
Class: Jaxon
Call PHP classes from JavaScript using AJAX
Author: By
Last change:
Date: 2 months ago
Size: 4,599 bytes
 

 

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<?php

/**
 * URI.php - Jaxon request URI detector
 *
 * Detect and parse the URI of the Jaxon request being processed.
 *
 * @package jaxon-core
 * @author Thierry Feuzeu <thierry.feuzeu@gmail.com>
 * @copyright 2016 Thierry Feuzeu <thierry.feuzeu@gmail.com>
 * @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
 * @link https://github.com/jaxon-php/jaxon-core
 */

namespace Jaxon\Utils\Http;

class
URI
{
   
/**
     * Get the URL from the $_SERVER var
     *
     * @var array &$aURL The URL data
     * @var string $sKey The key in the $_SERVER array
     *
     * @return void
     */
   
private function getHostFromServer(array &$aURL, $sKey)
    {
        if(empty(
$aURL['host']) && !empty($_SERVER[$sKey]))
        {
            if(
strpos($_SERVER[$sKey], ':') > 0)
            {
                list(
$aURL['host'], $aURL['port']) = explode(':', $_SERVER[$sKey]);
            }
            else
            {
               
$aURL['host'] = $_SERVER[$sKey];
            }
        }
    }

   
/**
     * Detect the URI of the current request
     *
     * @return string The URI
     */
   
public function detect()
    {
       
$aURL = [];
       
// Try to get the request URL
       
if(!empty($_SERVER['REQUEST_URI']))
        {
           
$_SERVER['REQUEST_URI'] = str_replace(['"', "'", '<', '>'], ['%22', '%27', '%3C', '%3E'], $_SERVER['REQUEST_URI']);
           
$aURL = parse_url($_SERVER['REQUEST_URI']);
            if(!
is_array($aURL))
            {
               
$aURL = [];
            }
        }

       
// Fill in the empty values
       
if(empty($aURL['scheme']))
        {
            if(!empty(
$_SERVER['HTTP_SCHEME']))
            {
               
$aURL['scheme'] = $_SERVER['HTTP_SCHEME'];
            }
            else
            {
               
$aURL['scheme'] = ((!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) != 'off') ? 'https' : 'http');
            }
        }

       
$this->getHostFromServer($aURL, 'HTTP_X_FORWARDED_HOST');
       
$this->getHostFromServer($aURL, 'HTTP_HOST');
       
$this->getHostFromServer($aURL, 'SERVER_NAME');
        if(empty(
$aURL['host']))
        {
            throw new \
Jaxon\Exception\URI();
        }

        if(empty(
$aURL['port']) && !empty($_SERVER['SERVER_PORT']))
        {
           
$aURL['port'] = $_SERVER['SERVER_PORT'];
        }

        if(!empty(
$aURL['path']) && strlen(basename($aURL['path'])) == 0)
        {
            unset(
$aURL['path']);
        }

        if(empty(
$aURL['path']))
        {
            if(!empty(
$_SERVER['PATH_INFO']))
            {
               
$sPath = parse_url($_SERVER['PATH_INFO']);
            }
            else
            {
               
$sPath = parse_url($_SERVER['PHP_SELF']);
            }
            if(isset(
$sPath['path']))
            {
               
$aURL['path'] = str_replace(['"', "'", '<', '>'], ['%22', '%27', '%3C', '%3E'], $sPath['path']);
            }
            unset(
$sPath);
        }

        if(empty(
$aURL['query']) && !empty($_SERVER['QUERY_STRING']))
        {
           
$aURL['query'] = $_SERVER['QUERY_STRING'];
        }

        if(!empty(
$aURL['query']))
        {
           
$aURL['query'] = '?' . $aURL['query'];
        }

       
// Build the URL: Start with scheme, user and pass
       
$sURL = $aURL['scheme'] . '://';
        if(!empty(
$aURL['user']))
        {
           
$sURL .= $aURL['user'];
            if(!empty(
$aURL['pass']))
            {
               
$sURL .= ':' . $aURL['pass'];
            }
           
$sURL .= '@';
        }

       
// Add the host
       
$sURL .= $aURL['host'];

       
// Add the port if needed
       
if(!empty($aURL['port']) &&
            ((
$aURL['scheme'] == 'http' && $aURL['port'] != 80) ||
            (
$aURL['scheme'] == 'https' && $aURL['port'] != 443)))
        {
           
$sURL .= ':' . $aURL['port'];
        }

       
// Add the path and the query string
       
$sURL .= $aURL['path'] . @$aURL['query'];

       
// Clean up
       
unset($aURL);

       
$aURL = explode("?", $sURL);

        if(
1 < count($aURL))
        {
           
$aQueries = explode("&", $aURL[1]);

            foreach(
$aQueries as $sKey => $sQuery)
            {
                if(
"jxnGenerate" == substr($sQuery, 0, 11))
                {
                                    unset(
$aQueries[$sKey]);
                }
            }

           
$sQueries = implode("&", $aQueries);

           
$aURL[1] = $sQueries;

           
$sURL = implode("?", $aURL);
        }

        return
$sURL;
    }
}